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<!-- CreationDate: Thu Jun 30 17:23:47 2011 -->
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<title>NETCDF</title>
</head>
<body>
<h1 align="center">NETCDF</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#LIBRARY VERSION">LIBRARY VERSION</a><br>
<a href="#RETURN VALUES">RETURN VALUES</a><br>
<a href="#FILE OPERATIONS">FILE OPERATIONS</a><br>
<a href="#USER DEFINED TYPES">USER DEFINED TYPES</a><br>
<a href="#GROUPS">GROUPS</a><br>
<a href="#DIMENSIONS">DIMENSIONS</a><br>
<a href="#VARIABLES">VARIABLES</a><br>
<a href="#VARIABLES in NETCDF-4 FILES">VARIABLES in NETCDF-4 FILES</a><br>
<a href="#WRITING AND READING WHOLE VARIABLES">WRITING AND READING WHOLE VARIABLES</a><br>
<a href="#WRITING AND READING ONE DATUM">WRITING AND READING ONE DATUM</a><br>
<a href="#WRITING AND READING AN ARRAY">WRITING AND READING AN ARRAY</a><br>
<a href="#WRITING AND READING A SLICED ARRAY">WRITING AND READING A SLICED ARRAY</a><br>
<a href="#WRITING AND READING A MAPPED ARRAY">WRITING AND READING A MAPPED ARRAY</a><br>
<a href="#ATTRIBUTES">ATTRIBUTES</a><br>
<a href="#COMMON ARGUMENT DESCRIPTIONS">COMMON ARGUMENT DESCRIPTIONS</a><br>
<a href="#VARIABLE PREFILLING">VARIABLE PREFILLING</a><br>
<a href="#MPP FUNCTION DESCRIPTIONS">MPP FUNCTION DESCRIPTIONS</a><br>
<a href="#ENVIRONMENT VARIABLES">ENVIRONMENT VARIABLES</a><br>
<a href="#MAILING-LISTS">MAILING-LISTS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<h2>NAME
<a name="NAME"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">netcdf −
Unidata’s Network Common Data Form (netCDF) library
interface</p>
<h2>SYNOPSIS
<a name="SYNOPSIS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>#include
"netcdf.h"</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>cc ...
-lnetcdf -lhdf5_hl -lhdf5 -lz -lm</b></p>
<p style="margin-left:11%; margin-top: 1em"><b>Complete
documentation for the netCDF libraries can be found at the
netCDF website:
http://www.unidata.ucar.edu/software/netcdf/.</b></p>
<h2>LIBRARY VERSION
<a name="LIBRARY VERSION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">This document
describes versions 3 and 4 of Unidata netCDF data-access
interface for the C programming language.</p>
<table width="100%" border="0" rules="none" frame="void"
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<td width="11%"></td>
<td width="43%">
<p style="margin-top: 1em"><b>const char*
nc_inq_libvers()</b></p> </td>
<td width="46%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Returns a
string identifying the version of the netCDF library, and
when it was built, like: "3.1a of Aug 22 1996 12:57:47
$".</p>
<p style="margin-left:11%; margin-top: 1em">The RCS
<b>ident(1)</b> command will find a string like "$Id:
@(#) netcdf library version 3.1a of Sep 6 1996 15:56:26
$" in the library. The SCCS <b>what(1)</b> command will
find a string like "netcdf library version 3.1a of Aug
23 1996 16:07:40 $".</p>
<h2>RETURN VALUES
<a name="RETURN VALUES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">All netCDF
functions (except <b>nc_inq_libvers()</b> and
<b>nc_strerror()</b>) return an integer status.</p>
<p style="margin-left:11%; margin-top: 1em">If this
returned status value is not equal to <b>NC_NOERR</b>
(zero), it indicates that an error occurred. The possible
status values are defined in system include file
<errno.h> and in "netcdf.h".</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="54%">
<p style="margin-top: 1em"><b>const char*
nc_strerror(int</b> <i>status</i><b>)</b></p></td>
<td width="35%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Returns a
string textual translation of the <i>status</i> value, like
"Attribute or variable name contains illegal
characters" or "No such file or
directory".</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<h2>FILE OPERATIONS
<a name="FILE OPERATIONS"></a>
</h2>
<td width="11%"></td>
<td width="83%"></td>
<td width="6%">
</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="83%">
<p><b>int nc_create(const char</b> <i>path</i><b>[],
int</b> <i>cmode</i><b>, int*</b> <i>ncid</i><b>)</b></p></td>
<td width="6%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Creates a new
netCDF dataset at <i>path</i>, returning a netCDF ID in
<i>ncid</i>. The argument <i>cmode</i> may include the
bitwise-or of the following flags: <b>NC_NOCLOBBER</b> to
protect existing datasets (default silently blows them
away), <b>NC_SHARE</b> for synchronous dataset updates for
classic format files (default is to buffer accesses),</p>
<p style="margin-left:22%; margin-top: 1em">When a netCDF
dataset is created, is is opened <b>NC_WRITE</b>. The new
netCDF dataset is in define mode. <b>NC_64BIT_OFFSET</b>. to
create a file in the 64-bit offset format (as opposed to
classic format, the default). <b>NC_TRUE</b> to create a
netCDF-4/HDF5 file, and <b>NC_CLASSIC_MODEL</b> to guarantee
that netCDF-4/HDF5 files maintain compatibility with the
netCDF classic data model.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc__create(const char</b>
<i>path</i><b>[], int</b> <i>cmode</i><b>, size_t</b>
<i>initialsize</i><b>, size_t*</b> <i>chunksize</i><b>,
int*</b> <i>ncid</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Like
<b>nc_create()</b> but has additional performance tuning
parameters.</p>
<p style="margin-left:22%; margin-top: 1em">The argument
<i>initialsize</i> sets the initial size of the file at
creation time.</p>
<p style="margin-left:22%; margin-top: 1em">See
<b>nc__open()</b> below for an explanation of the
<i>chunksize</i> parameter.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="78%">
<p style="margin-top: 1em"><b>int nc_open(const char</b>
<i>path</i><b>[], int</b> <i>mode</i><b>, int*</b>
<i>ncid</i><b>)</b></p> </td>
<td width="11%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncopen()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Opens a
existing netCDF dataset at <i>path</i> returning a netCDF ID
in <i>ncid</i>. The type of access is described by the
<i>mode</i> parameter, which may include the bitwise-or of
the following flags: <b>NC_WRITE</b> for read-write access
(default read-only), <b>NC_SHARE</b> for synchronous dataset
updates (default is to buffer accesses), and <b>NC_LOCK</b>
(not yet implemented).</p>
<p style="margin-left:22%; margin-top: 1em">As of NetCDF
version 4.1, and if TRUE support was enabled when the NetCDF
library was built, the path parameter may specify a TRUE
URL. In this case, the access mode is forced to be
read-only.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc__open(const char</b>
<i>path</i><b>[], int</b> <i>mode</i><b>, size_t*</b>
<i>chunksize</i><b>, int*</b> <i>ncid</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Like
<b>nc_open()</b> but has an additional performance tuning
parameter.</p>
<p style="margin-left:22%; margin-top: 1em">The argument
referenced by <i>chunksize</i> controls a space versus time
tradeoff, memory allocated in the netcdf library versus
number of system calls. Because of internal requirements,
the value may not be set to exactly the value requested. The
actual value chosen is returned by reference. Using the
value <b>NC_SIZEHINT_DEFAULT</b> causes the library to
choose a default. How the system choses the default depends
on the system. On many systems, the "preferred I/O
block size" is available from the <b>stat()</b> system
call, <b>struct stat</b> member <b>st_blksize</b>. If this
is available it is used. Lacking that, twice the system
pagesize is used. Lacking a call to discover the system
pagesize, we just set default chunksize to 8192.</p>
<p style="margin-left:22%; margin-top: 1em">The chunksize
is a property of a given open netcdf descriptor <i>ncid</i>,
it is not a persistent property of the netcdf dataset.</p>
<p style="margin-left:22%; margin-top: 1em">As with
<b>nc__open()</b>, the path parameter may specify a TRUE
URL, but the tuning parameters are ignored.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="34%">
<p style="margin-top: 1em"><b>int nc_redef(int</b>
<i>ncid</i><b>)</b></p> </td>
<td width="55%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncredef()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Puts an open
netCDF dataset into define mode, so dimensions, variables,
and attributes can be added or renamed and attributes can be
deleted.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="35%">
<p style="margin-top: 1em"><b>int nc_enddef(int</b>
<i>ncid</i><b>)</b></p> </td>
<td width="54%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncendef()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Takes an open
netCDF dataset out of define mode. The changes made to the
netCDF dataset while it was in define mode are checked and
committed to disk if no problems occurred. Some data values
may be written as well, see "VARIABLE PREFILLING"
below. After a successful call, variable data can be read or
written to the dataset.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc__enddef(int</b>
<i>ncid</i><b>, size_t</b> <i>h_minfree</i><b>, size_t</b>
<i>v_align</i><b>, size_t</b> <i>v_minfree</i><b>,
size_t</b> <i>r_align</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Like
<b>nc_enddef()</b> but has additional performance tuning
parameters.</p>
<p style="margin-left:22%; margin-top: 1em">Caution: this
function exposes internals of the netcdf version 1 file
format. It may not be available on future netcdf
implementations.</p>
<p style="margin-left:22%; margin-top: 1em">The current
netcdf file format has three sections, the
"header" section, the data section for fixed size
variables, and the data section for variables which have an
unlimited dimension (record variables). The header begins at
the beginning of the file. The index (offset) of the
beginning of the other two sections is contained in the
header. Typically, there is no space between the sections.
This causes copying overhead to accrue if one wishes to
change the size of the sections, as may happen when changing
names of things, text attribute values, adding attributes or
adding variables. Also, for buffered i/o, there may be
advantages to aligning sections in certain ways.</p>
<p style="margin-left:22%; margin-top: 1em">The minfree
parameters allow one to control costs of future calls to
<b>nc_redef()</b>, <b>nc_enddef()</b> by requesting that
<i>minfree</i> bytes be available at the end of the section.
The <i>h_minfree</i> parameter sets the pad at the end of
the "header" section. The <i>v_minfree</i>
parameter sets the pad at the end of the data section for
fixed size variables.</p>
<p style="margin-left:22%; margin-top: 1em">The align
parameters allow one to set the alignment of the beginning
of the corresponding sections. The beginning of the section
is rounded up to an index which is a multiple of the align
parameter. The flag value <b>NC_ALIGN_CHUNK</b> tells the
library to use the chunksize (see above) as the align
parameter. The <i>v_align</i> parameter controls the
alignment of the beginning of the data section for fixed
size variables. The <i>r_align</i> parameter controls the
alignment of the beginning of the data section for variables
which have an unlimited dimension (record variables).</p>
<p style="margin-left:22%; margin-top: 1em">The file format
requires mod 4 alignment, so the align parameters are
silently rounded up to multiples of 4. The usual call,
<b>nc_enddef(</b><i>ncid</i><b>)</b> is equivalent to
<b>nc__enddef(</b><i>ncid</i><b>, 0, 4, 0, 4)</b>.</p>
<p style="margin-left:22%; margin-top: 1em">The file format
does not contain a "record size" value, this is
calculated from the sizes of the record variables. This
unfortunate fact prevents us from providing minfree and
alignment control of the "records" in a netcdf
file. If you add a variable which has an unlimited
dimension, the third section will always be copied with the
new variable added.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="32%">
<p style="margin-top: 1em"><b>int nc_sync(int</b>
<i>ncid</i><b>)</b></p> </td>
<td width="57%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncsync()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Unless the
<b>NC_SHARE</b> bit is set in <b>nc_open()</b> or
<b>nc_create()</b>, accesses to the underlying netCDF
dataset are buffered by the library. This function
synchronizes the state of the underlying dataset and the
library. This is done automatically by <b>nc_close()</b> and
<b>nc_enddef()</b>.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="34%">
<p style="margin-top: 1em"><b>int nc_abort(int</b>
<i>ncid</i><b>)</b></p> </td>
<td width="55%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncabort()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">You don’t
need to call this function. This function is called
automatically by <b>nc_close()</b> if the netCDF was in
define mode and something goes wrong with the commit. If the
netCDF dataset isn’t in define mode, then this
function is equivalent to <b>nc_close()</b>. If it is called
after <b>nc_redef()</b>, but before <b>nc_enddef()</b>, the
new definitions are not committed and the dataset is closed.
If it is called after <b>nc_create()</b> but before
<b>nc_enddef()</b>, the dataset disappears.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="34%">
<p style="margin-top: 1em"><b>int nc_close(int</b>
<i>ncid</i><b>)</b></p> </td>
<td width="55%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncclose()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Closes an open
netCDF dataset. If the dataset is in define mode,
<b>nc_enddef()</b> will be called before closing. After a
dataset is closed, its ID may be reassigned to another
dataset.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq(int</b>
<i>ncid</i><b>, int*</b> <i>ndims</i><b>, int*</b>
<i>nvars</i><b>, int*</b> <i>natts</i><b>, int*</b>
<i>unlimdimid</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_ndims(int</b>
<i>ncid</i><b>, int*</b> <i>ndims</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_nvars(int</b>
<i>ncid</i><b>, int*</b> <i>nvars</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_natts(int</b>
<i>ncid</i><b>, int*</b> <i>natts</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_unlimdim(int</b>
<i>ncid</i><b>, int*</b> <i>unlimdimid</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_format(int</b>
<i>ncid</i><b>, int*</b> <i>formatn</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Use these
functions to find out what is in a netCDF dataset. Upon
successful return, <i>ndims</i> will contain the number of
dimensions defined for this netCDF dataset, <i>nvars</i>
will contain the number of variables, <i>natts</i> will
contain the number of attributes, and <i>unlimdimid</i> will
contain the dimension ID of the unlimited dimension if one
exists, or -1 otherwise. <i>formatn</i> will contain the
version number of the dataset <format>, one of
<b>NC_FORMAT_CLASSIC</b>, <b>NC_FORMAT_64BIT</b>,
<b>NC_FORMAT_NETCDF4</b>, or
<b>NC_FORMAT_NETCDF4_CLASSIC</b>. If any of the return
parameters is a <b>NULL</b> pointer, then the corresponding
information will not be returned; hence, no space need be
allocated for it.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_def_dim(int</b>
<i>ncid</i><b>, const char</b> <i>name</i><b>[], size_t</b>
<i>len</i><b>, int*</b> <i>dimid</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncdimdef()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Adds a new
dimension to an open netCDF dataset, which must be in define
mode. <i>name</i> is the dimension name. If <i>dimid</i> is
not a <b>NULL</b> pointer then upon successful completion
<i>dimid</i> will contain the dimension ID of the newly
created dimension.</p>
<h2>USER DEFINED TYPES
<a name="USER DEFINED TYPES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Users many
define types for a netCDF-4/HDF5 file (unless the
<b>NC_CLASSIC_MODEL</b> was used when the file was creates).
Users may define compound types, variable length arrays,
enumeration types, and opaque types.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_def_compound(int</b>
<i>ncid</i><b>, size_t</b> <i>size</i><b>, const char</b>
<i>name</i><b>[], int*</b> <i>typeidp</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Define a
compound type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_insert_compound(int</b> <i>ncid</i><b>, nc_type , const
char</b> <i>name</i><b>[], size_t</b> <i>offset</i><b>,
nc_type</b> <i>field_typeid</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Insert an
element into a compound type. May not be done after type has
been used, or after the type has been written by an
enddef.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_insert_array_compound(int</b> <i>ncid</i><b>, nc_type ,
const char</b> <i>name</i><b>[], size_t</b>
<i>offset</i><b>, nc_type</b> <i>field_typeid</i><b>,
int</b> <i>ndims</i><b>, const int</b>
<i>dim_sizes</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Insert an array
into a compound type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_type(int</b>
<i>ncid</i><b>, nc_type , char</b> <i>name</i><b>[],
size_t*</b> <i>sizep</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn about a
type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_compound(int</b>
<i>ncid</i><b>, nc_type , char</b> <i>name</i><b>[],
size_t*</b> <i>sizep</i><b>, size_t*</b>
<i>nfieldsp</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_compound_name(int</b> <i>ncid</i><b>, nc_type ,
char</b> <i>name</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_compound_size(int</b> <i>ncid</i><b>, nc_type ,
size_t*</b> <i>sizep</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_compound_nfields(int</b> <i>ncid</i><b>, nc_type ,
size_t*</b> <i>nfieldsp</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_compound_fieldname(int</b> <i>ncid</i><b>, nc_type ,
int</b> <i>fieldid</i><b>, char</b>
<i>name</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_compound_fieldindex(int</b> <i>ncid</i><b>, nc_type ,
const char</b> <i>name</i><b>[], int*</b>
<i>fieldidp</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_compound_fieldoffset(int</b> <i>ncid</i><b>, nc_type
, int</b> <i>fieldid</i><b>, size_t*</b>
<i>offsetp</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_compound_fieldtype(int</b> <i>ncid</i><b>, nc_type ,
int</b> <i>fieldid</i><b>, nc_type*</b>
<i>field_typeid</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_compound_fieldndims(int</b> <i>ncid</i><b>, nc_type ,
int</b> <i>fieldid</i><b>, int*</b> <i>ndims</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_compound_fielddim_sizes(int</b> <i>ncid</i><b>,
nc_type , int</b> <i>fieldid</i><b>, int</b>
<i>dim_sizes</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn about a
compound type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_def_vlen(int</b>
<i>ncid</i><b>, const char</b> <i>name</i><b>[], nc_type</b>
<i>base_typeid</i><b>, nc_type*</b>
<i>xtypep</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Create a
varaible length array type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_vlen(int</b>
<i>ncid</i><b>, nc_type , char</b> <i>name</i><b>[],
size_t*</b> <i>datum_sizep</i><b>, nc_type*</b>
<i>base_nc_typep</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn about a
varaible length array type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="47%">
<p style="margin-top: 1em"><b>int nc_free_vlen(nc_vlen_t
*vl)</b></p> </td>
<td width="42%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Free memory
comsumed by reading data of a varaible length array
type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_put_vlen_element(int</b> <i>ncid</i><b>, nc_type , void
*</b> <i>vlen_element</i><b>, size_t</b> <i>len</i><b>, void
*</b> <i>data</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Write one
VLEN.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_vlen_element(int</b> <i>ncid</i><b>, nc_type , void
**</b> <i>vlen_element</i><b>, size_t</b> <i>len</i><b>,
void **</b> <i>data</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Read one
VLEN.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="66%">
<p style="margin-top: 1em"><b>int nc_free_string(size_t</b>
<i>len</i><b>, char **data)</b></p></td>
<td width="23%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Free memory
comsumed by reading data of a string type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_user_type(int</b>
<i>ncid</i><b>, nc_type , char</b> <i>name</i><b>[], size_t*
, nc_type* , size_t* , int* )</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn about a
user define type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_def_enum(int</b>
<i>ncid</i><b>, nc_type</b> <i>base_typeid</i><b>, const
char</b> <i>name</i><b>[], nc_type*</b>
<i>typeidp</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Define an
enumeration type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_insert_enum(int</b>
<i>ncid</i><b>, nc_type</b> <i>base_typeid</i><b>, const
char</b> <i>name</i><b>[], const void *value)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Insert a
name-value pair into enumeration type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_enum_member(int</b> <i>ncid</i><b>, nc_type</b>
<i>xtype</i><b>, int</b> <i>idx</i><b>, char</b>
<i>name</i><b>[], void *value)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_enum_ident(int</b>
<i>ncid</i><b>, nc_type</b> <i>xtype</i><b>, int</b>
<i>idx</i><b>, long long</b> <i>value</i><b>, char</b>
<i>identifier</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn about a
name-value pair into enumeration type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_def_opaque(int</b>
<i>ncid</i><b>, size_t</b> <i>size</i><b>, const char</b>
<i>name</i><b>[], nc_type*</b> <i>xtypep</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Create an
opaque type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_opaque(int</b>
<i>ncid</i><b>, nc_type</b> <i>xtype</i><b>, char</b>
<i>name</i><b>[], size_t*</b> <i>sizep</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn about
opaque type.</p>
<h2>GROUPS
<a name="GROUPS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Users may
organize data into hierarchical groups in netCDF-4/HDF5
files (unless <b>NC_CLASSIC_MODEL</b> was used when creating
the file).</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="80%">
<p style="margin-top: 1em"><b>int nc_inq_grps(int</b>
<i>ncid</i><b>, int*</b> <i>numgrps</i><b>, int</b>
<i>ncids</i><b>[])</b></p> </td>
<td width="9%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn how many
groups (and their ncids) are available from the group
represented by ncid.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_grpname(int</b>
<i>ncid</i><b>, char</b> <i>name</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_grpname_full(int</b> <i>ncid</i><b>, size_t*</b>
<i>len</i><b>, char</b> <i>name</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_grpname_len(int</b> <i>ncid</i><b>, size_t*</b>
<i>len</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_grp_parent(int</b>
<i>ncid</i><b>, int*</b> <i>ncid</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_grp_ncid(int</b>
<i>ncid</i><b>, char</b> <i>name</i><b>[], int*</b>
<i>ncid</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_full_ncid(int</b>
<i>ncid</i><b>, char</b> <i>name</i><b>[], int*</b>
<i>ncid</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn about a
group.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="71%">
<p style="margin-top: 1em"><b>int nc_inq_varids(int</b>
<i>ncid</i><b>, int*</b> <i>nvars</i><b>, int* )</b></p></td>
<td width="18%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Get the varids
in a group.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_dimids(int</b>
<i>ncid</i><b>, int*</b> <i>ndims</i><b>, int*</b>
<i>dimids</i><b>, int</b> <i>include_parents</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Get the dimids
in a group and (potentially) its parents.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="86%">
<p style="margin-top: 1em"><b>int nc_inq_typeids(int</b>
<i>ncid</i><b>, int*</b> <i>ntypes</i><b>, int</b>
<i>typeids</i><b>[])</b></p> </td>
<td width="3%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Get the typeids
of user-defined types in a group.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="74%">
<p style="margin-top: 1em"><b>int nc_def_grp(int</b>
<i>ncid</i><b>, char</b> <i>name</i><b>[], int*</b>
<i>ncid</i><b>)</b></p> </td>
<td width="15%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Create a
group.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<h2>DIMENSIONS
<a name="DIMENSIONS"></a>
</h2>
<td width="11%"></td>
<td width="87%"></td>
<td width="2%">
</td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="87%">
<p><b>int nc_inq_dimid(int</b> <i>ncid</i><b>, const
char</b> <i>name</i><b>[], int*</b> <i>dimid</i><b>)</b></p></td>
<td width="2%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncdimid()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Given a
dimension name, returns the ID of a netCDF dimension in
<i>dimid</i>.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_dim(int</b>
<i>ncid</i><b>, int</b> <i>dimid</i><b>, char</b>
<i>name</i><b>[], size_t*</b> <i>len</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_dimname(int</b>
<i>ncid</i><b>, int</b> <i>dimid</i><b>, char</b>
<i>name</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_dimlen(int</b>
<i>ncid</i><b>, int</b> <i>dimid</i><b>, size_t*</b>
<i>len</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Use these
functions to find out about a dimension. If either the
<i>name</i> argument or <i>len</i> argument is a <b>NULL</b>
pointer, then the associated information will not be
returned. Otherwise, <i>name</i> should be big enough
(<b>NC_MAX_NAME</b>) to hold the dimension name as the name
will be copied into your storage. The length return
parameter, <i>len</i> will contain the size of the
dimension. For the unlimited dimension, the returned length
is the current maximum value used for writing into any of
the variables which use the dimension.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="87%">
<p style="margin-top: 1em"><b>int nc_rename_dim(int</b>
<i>ncid</i><b>, int</b> <i>dimid</i><b>, const char</b>
<i>name</i><b>[])</b></p> </td>
<td width="2%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncdimrename()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Renames an
existing dimension in an open netCDF dataset. If the new
name is longer than the old name, the netCDF dataset must be
in define mode. You cannot rename a dimension to have the
same name as another dimension.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<h2>VARIABLES
<a name="VARIABLES"></a>
</h2>
<td width="11%"></td>
<td width="89%">
<p><b>int nc_def_var(int</b> <i>ncid</i><b>, const char</b>
<i>name</i><b>[], nc_type</b> <i>xtype</i><b>, int</b>
<i>ndims</i><b>, const int</b> <i>dimids</i><b>[], int*</b>
<i>varid</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncvardef()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Adds a new
variable to a netCDF dataset. The netCDF must be in define
mode. If not <b>NULL</b>, then <i>varid</i> will be set to
the netCDF variable ID.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="87%">
<p style="margin-top: 1em"><b>int nc_inq_varid(int</b>
<i>ncid</i><b>, const char</b> <i>name</i><b>[], int*</b>
<i>varid</i><b>)</b></p> </td>
<td width="2%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncvarid()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Returns the ID
of a netCDF variable in <i>varid</i> given its name.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_var(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, char</b>
<i>name</i><b>[], nc_type*</b> <i>xtype</i><b>, int*</b>
<i>ndims</i><b>, int</b> <i>dimids</i><b>[], int*</b>
<i>natts</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_varname(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, char</b>
<i>name</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_vartype(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, nc_type*</b>
<i>xtype</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_varndims(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, int*</b>
<i>ndims</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_vardimid(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, int</b>
<i>dimids</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_varnatts(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, int*</b>
<i>natts</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Returns
information about a netCDF variable, given its ID. If any of
the return parameters (<i>name</i>, <i>xtype</i>,
<i>ndims</i>, <i>dimids</i>, or <i>natts</i>) is a
<b>NULL</b> pointer, then the corresponding information will
not be returned; hence, no space need be allocated for
it.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="87%">
<p style="margin-top: 1em"><b>int nc_rename_var(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[])</b></p> </td>
<td width="2%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncvarrename()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Changes the
name of a netCDF variable. If the new name is longer than
the old name, the netCDF must be in define mode. You cannot
rename a variable to have the name of any existing
variable.</p>
<h2>VARIABLES in NETCDF-4 FILES
<a name="VARIABLES in NETCDF-4 FILES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The following
functions may only be used on variables in a netCDF-4/HDF5
data file. These functions must be called after the variable
is defined, but before an enddef call.</p>
<p style="margin-left:11%; margin-top: 1em"><b>int
nc_def_var_deflate(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, int</b> <i>shuffle</i><b>, int</b>
<i>deflate</i><b>, int</b> <i>deflate_level</i><b>)</b></p>
<p style="margin-left:11%; margin-top: 1em">Turn on
compression and/or shuffle filter. (Shuffle filter is only
useful for integer data.)</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_var_deflate(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, int*</b> <i>shufflep</i><b>, int*</b>
<i>deflatep</i><b>, int*</b>
<i>deflate_levelp</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn about a
variable’s deflate settings.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_def_var_fletcher32(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, int</b> <i>fletcher32</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Turn on
checksumming for a variable.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_var_fletcher32(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, int*</b> <i>fletcher32</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn about
checksumming for a variable.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_def_var_chunking(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, int</b> <i>storage</i><b>, const size_t</b>
<i>chunksizesp</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Set chunksizes
for a variable.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_inq_var_chunking(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, int*</b> <i>storagep</i><b>, size_t</b>
<i>chunksizesp</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn about
chunksizes for a variable.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_def_var_fill(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, int</b>
<i>no_fill</i><b>, const size_t</b>
<i>chunksizesp</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Set a fill
value for a variable.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_var_fill(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, int*</b>
<i>storagep</i><b>, size_t</b>
<i>chunksizesp</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn the fill
value for a variable.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="83%">
<p style="margin-top: 1em"><b>int nc_def_var_endian(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, int</b>
<i>endian</i><b>)</b></p> </td>
<td width="6%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Set endianness
of variable.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="86%">
<p style="margin-top: 1em"><b>int nc_inq_var_endian(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, int*</b>
<i>endianp</i><b>)</b></p> </td>
<td width="3%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Learn the
endianness of a variable.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<h2>WRITING AND READING WHOLE VARIABLES
<a name="WRITING AND READING WHOLE VARIABLES"></a>
</h2>
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_text(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_uchar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const unsigned char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_schar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const signed char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_short(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const short</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_int(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const int</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_long(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const long</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_float(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const float</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_double(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const double</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_ubyte(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const unsigned char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_ushort(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const unsigned short</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_uint(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const unsigned int</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_int64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const long long</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_uint64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const unsigned long long</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var_string(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char *</b> <i>out</i><b>[])</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Writes an
entire netCDF variable (i.e. all the values). The netCDF
dataset must be open and in data mode. The type of the data
is specified in the function name, and it is converted to
the external type of the specified variable, if possible,
otherwise an <b>NC_ERANGE</b> error is returned. Note that
rounding is not performed during the conversion. Floating
point numbers are truncated when converted to integers.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_text(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, char</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_uchar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, unsigned char</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_schar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, signed char</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_short(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, short</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_int(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, int</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_long(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, long</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_float(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, float</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_double(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, double</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_ubyte(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, unsigned char</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_ushort(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, unsigned short</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_uint(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, unsigned int</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_int64(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, long long</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_uint64(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, unsigned long
long</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var_string(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, char *</b>
<i>in</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Reads an entire
netCDF variable (i.e. all the values). The netCDF dataset
must be open and in data mode. The data is converted from
the external type of the specified variable, if necessary,
to the type specified in the function name. If conversion is
not possible, an <b>NC_ERANGE</b> error is returned.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<h2>WRITING AND READING ONE DATUM
<a name="WRITING AND READING ONE DATUM"></a>
</h2>
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_text(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[],
char</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_uchar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[],
unsigned char</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_schar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[], signed
char</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_short(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[],
short</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_int(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[], int</b>
<i>*out</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_long(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[],
long</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_float(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[],
float</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_double(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>index</i><b>[],
double</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_ubyte(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[],
unsigned char</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_ushort(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>index</i><b>[],
unsigned short</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_uint(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[],
unsigned int</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_int64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[], long
long</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_uint64(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>index</i><b>[],
unsigned long long</b> <i>*out</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_var1_string(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>index</i><b>[],
char *</b> <i>*out</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Puts a single
data value into a variable at the position <i>index</i> of
an open netCDF dataset that is in data mode. The type of the
data is specified in the function name, and it is converted
to the external type of the specified variable, if possible,
otherwise an <b>NC_ERANGE</b> error is returned.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var1_text(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>index</i><b>[], char*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var1_uchar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>index</i><b>[], unsigned char*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var1_schar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>index</i><b>[], signed char*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var1_short(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>index</i><b>[], short*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var1_int(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>index</i><b>[], int*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var1_long(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>index</i><b>[], long*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var1_float(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>index</i><b>[], float*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_var1_double(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[],
double*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var1_ubyte(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>index</i><b>[], unsigned char*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_var1_ushort(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[],
unsigned short*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var1_uint(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>index</i><b>[], unsigned int*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_var1_int64(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>index</i><b>[], long long*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_var1_uint64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[],
unsigned long long*</b> <i>in</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_var1_string(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>index</i><b>[], char
**</b> <i>in</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Gets a single
data value from a variable at the position <i>index</i> of
an open netCDF dataset that is in data mode. The data is
converted from the external type of the specified variable,
if necessary, to the type specified in the function name. If
conversion is not possible, an <b>NC_ERANGE</b> error is
returned.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<h2>WRITING AND READING AN ARRAY
<a name="WRITING AND READING AN ARRAY"></a>
</h2>
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_text(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_uchar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const unsigned char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_schar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const signed char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_short(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const short</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_int(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const int</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_long(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const long</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_float(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const float</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_double(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const double</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_ubyte(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const unsigned char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_ushort(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const unsigned short</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_uint(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const unsigned int</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_int64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const long long</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_uint64(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const unsigned long
long</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vara_string(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const char *</b>
<i>out</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Writes an array
section of values into a netCDF variable of an open netCDF
dataset, which must be in data mode. The array section is
specified by the <i>start</i> and <i>count</i> vectors,
which give the starting index and count of values along each
dimension of the specified variable. The type of the data is
specified in the function name and is converted to the
external type of the specified variable, if possible,
otherwise an <b>NC_ERANGE</b> error is returned.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vara_text(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[],
char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vara_uchar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[],
unsigned char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vara_schar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[],
signed char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vara_short(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[],
short</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vara_int(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[],
int</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vara_long(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[],
long</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vara_float(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[],
float</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_vara_double(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], double</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vara_ubyte(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[],
unsigned char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_vara_ushort(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], unsigned short</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vara_uint(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[],
unsigned int</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vara_int64(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], long
long</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_vara_uint64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], unsigned long long</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_vara_string(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], char *</b>
<i>in</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Reads an array
section of values from a netCDF variable of an open netCDF
dataset, which must be in data mode. The array section is
specified by the <i>start</i> and <i>count</i> vectors,
which give the starting index and count of values along each
dimension of the specified variable. The data is converted
from the external type of the specified variable, if
necessary, to the type specified in the function name. If
conversion is not possible, an <b>NC_ERANGE</b> error is
returned.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<h2>WRITING AND READING A SLICED ARRAY
<a name="WRITING AND READING A SLICED ARRAY"></a>
</h2>
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_text(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const char</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_uchar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const unsigned char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_schar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const signed char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_short(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const short</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_int(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const int</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_long(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const long</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_float(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const float</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_double(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const double</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_ubyte(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const unsigned char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_ushort(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const unsigned short</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_uint(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const unsigned int</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_int64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const long long</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_uint64(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const unsigned long long</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_vars_string(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], const char *</b>
<i>out</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">These functions
are used for <i>strided output</i>, which is like the array
section output described above, except that the sampling
stride (the interval between accessed values) is specified
for each dimension. For an explanation of the sampling
stride vector, see COMMON ARGUMENTS DESCRIPTIONS below.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vars_text(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[], char</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vars_uchar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[], unsigned char</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vars_schar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[], signed char</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vars_short(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[], short</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vars_int(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[], int</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vars_long(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[], long</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vars_float(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[], float</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_vars_double(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], double</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vars_ubyte(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[], unsigned char</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_vars_ushort(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], unsigned short</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vars_uint(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[], unsigned int</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_vars_int64(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[], long long</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_vars_uint64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], unsigned long long</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_vars_string(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[], char *</b> <i>in</i><b>[])</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">These functions
are used for <i>strided input</i>, which is like the array
section input described above, except that the sampling
stride (the interval between accessed values) is specified
for each dimension. For an explanation of the sampling
stride vector, see COMMON ARGUMENTS DESCRIPTIONS below.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<h2>WRITING AND READING A MAPPED ARRAY
<a name="WRITING AND READING A MAPPED ARRAY"></a>
</h2>
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_text(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const char</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_uchar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const unsigned
char</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_schar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const signed
char</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_short(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const short</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_int(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const int</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_long(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const long</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_float(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const float</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_double(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const double</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_ubyte(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const unsigned
char</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_ushort(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const unsigned
short</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_uint(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const unsigned
int</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_int64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const long long</b>
<i>out</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_uint64(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const unsigned long
long</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_varm_string(int</b> <i>ncid</i><b>,
int</b> <i>varid</i><b>, const size_t</b> <i>start</i><b>[],
const size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, const char *</b>
<i>out</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">These functions
are used for <i>mapped output</i>, which is like strided
output described above, except that an additional index
mapping vector is provided to specify the in-memory
arrangement of the data values. For an explanation of the
index mapping vector, see COMMON ARGUMENTS DESCRIPTIONS
below.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_varm_text(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[],</b> <i>imap</i><b>, char</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_varm_uchar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[],</b> <i>imap</i><b>, unsigned
char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_varm_schar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[],</b> <i>imap</i><b>, signed
char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_varm_short(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[],</b> <i>imap</i><b>, short</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_varm_int(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[],</b> <i>imap</i><b>, int</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_varm_long(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[],</b> <i>imap</i><b>, long</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_varm_float(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[],</b> <i>imap</i><b>, float</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_varm_double(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, double</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_varm_ubyte(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[],</b> <i>imap</i><b>, unsigned
char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_varm_ushort(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, unsigned short</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_varm_uint(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[],</b> <i>imap</i><b>, unsigned
int</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_varm_int64(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const size_t</b>
<i>start</i><b>[], const size_t</b> <i>count</i><b>[], const
size_t</b> <i>stride</i><b>[],</b> <i>imap</i><b>, long
long</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_varm_uint64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, unsigned long
long</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int
nc_get_varm_string(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const size_t</b> <i>start</i><b>[], const
size_t</b> <i>count</i><b>[], const size_t</b>
<i>stride</i><b>[],</b> <i>imap</i><b>, char *</b>
<i>in</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">These functions
are used for <i>mapped input</i>, which is like strided
input described above, except that an additional index
mapping vector is provided to specify the in-memory
arrangement of the data values. For an explanation of the
index mapping vector, see COMMON ARGUMENTS DESCRIPTIONS
below.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<h2>ATTRIBUTES
<a name="ATTRIBUTES"></a>
</h2>
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_text(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
char</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_uchar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
unsigned char</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_schar(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
signed char</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_short(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
short</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_int(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
int</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_long(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
long</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_float(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
float</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_double(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
double</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_ubyte(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
unsigned char</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_ushort(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
unsigned short</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_uint(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
unsigned int</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_int64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
long long</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_uint64(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
unsigned long long</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att_string(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, const
char *</b> <i>out</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_put_att(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[],
nc_type</b> <i>xtype</i><b>, size_t</b> <i>len</i><b>, void
*</b> <i>ip</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p><b>int nc_get_att(int</b> <i>ncid</i><b>, int</b>
<i>varid</i><b>, const char</b> <i>name</i><b>[], void
**</b> <i>ip</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Unlike
variables, attributes do not have separate functions for
defining and writing values. This family of functions
defines a new attribute with a value or changes the value of
an existing attribute. If the attribute is new, or if the
space required to store the attribute value is greater than
before, the netCDF dataset must be in define mode. The
parameter <i>len</i> is the number of values from <i>out</i>
to transfer. It is often one, except that for
<b>nc_put_att_text()</b> it will usually be
<b>strlen(</b><i>out</i><b>)</b>.</p>
<p style="margin-left:22%; margin-top: 1em">For these
functions, the type component of the function name refers to
the in-memory type of the value, whereas the <i>xtype</i>
argument refers to the external type for storing the value.
An <b>NC_ERANGE</b> error results if a conversion between
these types is not possible. In this case the value is
represented with the appropriate fill-value for the
associated external type.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_attname(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, int</b>
<i>attnum</i><b>, char</b> <i>name</i><b>[])</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Gets the name
of an attribute, given its variable ID and attribute number.
This function is useful in generic applications that need to
get the names of all the attributes associated with a
variable, since attributes are accessed by name rather than
number in all other attribute functions. The number of an
attribute is more volatile than the name, since it can
change when other attributes of the same variable are
deleted. The attributes for each variable are numbered from
0 (the first attribute) to <i>nvatts</i>-1, where
<i>nvatts</i> is the number of attributes for the variable,
as returned from a call to <b>nc_inq_varnatts()</b>. If the
<i>name</i> parameter is a <b>NULL</b> pointer, no name will
be returned and no space need be allocated.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_att(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], nc_type*</b> <i>xtype</i><b>, size_t*</b>
<i>len</i><b>)</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_attid(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], int*</b> <i>attnum</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_atttype(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], nc_type*</b> <i>xtype</i><b>)</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_inq_attlen(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], size_t*</b> <i>len</i><b>)</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">These functions
return information about a netCDF attribute, given its
variable ID and name. The information returned is the
external type in <i>xtype</i> and the number of elements in
the attribute as <i>len</i>. If any of the return arguments
is a <b>NULL</b> pointer, the specified information will not
be returned.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_copy_att(int</b>
<i>ncid</i><b>, int</b> <i>varid_in</i><b>, const char</b>
<i>name</i><b>[], int</b> <i>ncid_out</i><b>, int</b>
<i>varid_out</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Copies an
attribute from one netCDF dataset to another. It can also be
used to copy an attribute from one variable to another
within the same netCDF. <i>ncid_in</i> is the netCDF ID of
an input netCDF dataset from which the attribute will be
copied. <i>varid_in</i> is the ID of the variable in the
input netCDF dataset from which the attribute will be
copied, or <b>NC_GLOBAL</b> for a global attribute.
<i>name</i> is the name of the attribute in the input netCDF
dataset to be copied. <i>ncid_out</i> is the netCDF ID of
the output netCDF dataset to which the attribute will be
copied. It is permissible for the input and output netCDF
ID’s to be the same. The output netCDF dataset should
be in define mode if the attribute to be copied does not
already exist for the target variable, or if it would cause
an existing target attribute to grow. <i>varid_out</i> is
the ID of the variable in the output netCDF dataset to which
the attribute will be copied, or <b>NC_GLOBAL</b> to copy to
a global attribute.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_rename_att(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], const char</b>
<i>newname</i><b>[])</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Changes the
name of an attribute. If the new name is longer than the
original name, the netCDF must be in define mode. You cannot
rename an attribute to have the same name as another
attribute of the same variable. <i>name</i> is the original
attribute name. <i>newname</i> is the new name to be
assigned to the specified attribute. If the new name is
longer than the old name, the netCDF dataset must be in
define mode.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="83%">
<p style="margin-top: 1em"><b>int nc_del_att(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[])</b></p> </td>
<td width="6%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Deletes an
attribute from a netCDF dataset. The dataset must be in
define mode.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_text(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_uchar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], unsigned char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_schar(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], signed char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_short(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], short</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_int(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], int</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_long(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], long</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_float(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], float</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_double(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], double</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_ubyte(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], unsigned char</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_ushort(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], unsigned short</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_uint(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], unsigned int</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_int64(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], long long</b> <i>in</i><b>[])</b></p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_uint64(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], unsigned long long</b>
<i>in</i><b>[])</b></p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_get_att_string(int</b>
<i>ncid</i><b>, int</b> <i>varid</i><b>, const char</b>
<i>name</i><b>[], char *</b> <i>in</i><b>[])</b></p></td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Gets the
value(s) of a netCDF attribute, given its variable ID and
name. Converts from the external type to the type specified
in the function name, if possible, otherwise returns an
<b>NC_ERANGE</b> error. All elements of the vector of
attribute values are returned, so you must allocate enough
space to hold them. If you don’t know how much space
to reserve, call <b>nc_inq_attlen()</b> first to find out
the length of the attribute.</p>
<h2>COMMON ARGUMENT DESCRIPTIONS
<a name="COMMON ARGUMENT DESCRIPTIONS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">In this section
we define some common arguments which are used in the
"FUNCTION DESCRIPTIONS" section. <br>
int <i>ncid</i></p>
<p style="margin-left:22%;">is the netCDF ID returned from
a previous, successful call to <b>nc_open()</b> or
<b>nc_create()</b></p>
<p style="margin-left:11%;">char <i>name</i>[]</p>
<p style="margin-left:22%;">is the name of a dimension,
variable, or attribute. The names of dimensions, variables
and attributes consist of arbitrary sequences of
alphanumeric characters (as well as underscore
’_’, period ’.’ and hyphen
’-’), beginning with a letter or underscore.
(However names commencing with underscore are reserved for
system use.) Case is significant in netCDF names. A
zero-length name is not allowed. As an input argument, it
shall be a pointer to a 0-terminated string; as an output
argument, it shall be the address of a buffer in which to
hold such a string. The maximum allowable number of
characters (excluding the terminating 0) is
<b>NC_MAX_NAME</b>.</p>
<p style="margin-left:11%;">nc_type <i>xtype</i></p>
<p style="margin-left:22%;">specifies the external data
type of a netCDF variable or attribute and is one of the
following: <b>NC_BYTE</b>, <b>NC_CHAR</b>, <b>NC_SHORT</b>,
<b>NC_INT</b>, <b>NC_FLOAT</b>, or <b>NC_DOUBLE</b>. These
are used to specify 8-bit integers, characters, 16-bit
integers, 32-bit integers, 32-bit IEEE floating point
numbers, and 64-bit IEEE floating-point numbers,
respectively. (<b>NC_INT</b> corresponds to <b>NC_LONG</b>
in version 2, to specify a 32-bit integer).</p>
<p style="margin-left:11%;">int <i>dimids</i>[]</p>
<p style="margin-left:22%;">is a vector of dimension
ID’s and defines the shape of a netCDF variable. The
size of the vector shall be greater than or equal to the
rank (i.e. the number of dimensions) of the variable
(<i>ndims</i>). The vector shall be ordered by the speed
with which a dimension varies: <i>dimids</i>[<i>ndims</i>-1]
shall be the dimension ID of the most rapidly varying
dimension and <i>dimids</i>[0] shall be the dimension ID of
the most slowly varying dimension. The maximum possible
number of dimensions for a variable is given by the symbolic
constant <b>NC_MAX_VAR_DIMS</b>.</p>
<p style="margin-left:11%;">int <i>dimid</i></p>
<p style="margin-left:22%;">is the ID of a netCDF
dimension. netCDF dimension ID’s are allocated
sequentially from the non-negative integers beginning with
0.</p>
<p style="margin-left:11%;">int <i>ndims</i></p>
<p style="margin-left:22%;">is either the total number of
dimensions in a netCDF dataset or the rank (i.e. the number
of dimensions) of a netCDF variable. The value shall not be
negative or greater than the symbolic constant
<b>NC_MAX_VAR_DIMS</b>.</p>
<p style="margin-left:11%;">int <i>varid</i></p>
<p style="margin-left:22%;">is the ID of a netCDF variable
or (for the attribute-access functions) the symbolic
constant <b>NC_GLOBAL</b>, which is used to reference global
attributes. netCDF variable ID’s are allocated
sequentially from the non-negative integers beginning with
0.</p>
<p style="margin-left:11%;">int* <i>natts</i></p>
<p style="margin-left:22%;">is the number of global
attributes in a netCDF dataset for the <b>nc_inquire()</b>
function or the number of attributes associated with a
netCDF variable for the <b>nc_varinq()</b> function.</p>
<p style="margin-left:11%;">const size_t <i>index</i>[]</p>
<p style="margin-left:22%;">specifies the indicial
coordinates of the netCDF data value to be accessed. The
indices start at 0; thus, for example, the first data value
of a two-dimensional variable is (0,0). The size of the
vector shall be at least the rank of the associated netCDF
variable and its elements shall correspond, in order, to the
variable’s dimensions.</p>
<p style="margin-left:11%;">const size_t <i>start</i>[]</p>
<p style="margin-left:22%;">specifies the starting point
for accessing a netCDF variable’s data values in terms
of the indicial coordinates of the corner of the array
section. The indices start at 0; thus, the first data value
of a variable is (0, 0, ..., 0). The size of the vector
shall be at least the rank of the associated netCDF variable
and its elements shall correspond, in order, to the
variable’s dimensions.</p>
<p style="margin-left:11%;">const size_t <i>count</i>[]</p>
<p style="margin-left:22%;">specifies the number of indices
selected along each dimension of the array section. Thus, to
access a single value, for example, specify <i>count</i> as
(1, 1, ..., 1). Note that, for strided I/O, this argument
must be adjusted to be compatible with the <i>stride</i> and
<i>start</i> arguments so that the interaction of the three
does not attempt to access an invalid data co-ordinate. The
elements of the <i>count</i> vector correspond, in order, to
the variable’s dimensions.</p>
<p style="margin-left:11%;">const size_t
<i>stride</i>[]</p>
<p style="margin-left:22%;">specifies the sampling interval
along each dimension of the netCDF variable. The elements of
the stride vector correspond, in order, to the netCDF
variable’s dimensions (<i>stride</i>[0]) gives the
sampling interval along the most slowly varying dimension of
the netCDF variable). Sampling intervals are specified in
type-independent units of elements (a value of 1 selects
consecutive elements of the netCDF variable along the
corresponding dimension, a value of 2 selects every other
element, etc.). A <b>NULL</b> stride argument is treated as
(1, 1, ... , 1).</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="6%">
<p><i>imap</i></p></td>
<td width="5%"></td>
<td width="78%">
<p>specifies the mapping between the dimensions of a netCDF
variable and the in-memory structure of the internal data
array. The elements of the index mapping vector correspond,
in order, to the netCDF variable’s dimensions
(<i>imap</i>[0] gives the distance between elements of the
internal array corresponding to the most slowly varying
dimension of the netCDF variable). Distances between
elements are specified in type-independent units of elements
(the distance between internal elements that occupy adjacent
memory locations is 1 and not the element’s
byte-length as in netCDF 2). A <b>NULL</b> pointer means the
memory-resident values have the same structure as the
associated netCDF variable.</p></td></tr>
</table>
<h2>VARIABLE PREFILLING
<a name="VARIABLE PREFILLING"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">By default, the
netCDF interface sets the values of all newly-defined
variables of finite length (i.e. those that do not have an
unlimited, dimension) to the type-dependent fill-value
associated with each variable. This is done when
<b>nc_enddef()</b> is called. The fill-value for a variable
may be changed from the default value by defining the
attribute ‘<b>_FillValue</b>’ for the variable.
This attribute must have the same type as the variable and
be of length one.</p>
<p style="margin-left:11%; margin-top: 1em">Variables with
an unlimited dimension are also prefilled, but on an
‘as needed’ basis. For example, if the first
write of such a variable is to position 5, then positions 0
through 4 (and no others) would be set to the fill-value at
the same time.</p>
<p style="margin-left:11%; margin-top: 1em">This default
prefilling of data values may be disabled by or’ing
the <b>NC_NOFILL</b> flag into the mode parameter of
<b>nc_open()</b> or <b>nc_create()</b>, or, by calling the
function <b>nc_set_fill()</b> with the argument
<b>NC_NOFILL</b>. For variables that do not use the
unlimited dimension, this call must be made before
<b>nc_enddef()</b>. For variables that use the unlimited
dimension, this call may be made at any time.</p>
<p style="margin-left:11%; margin-top: 1em">One can obtain
increased performance of the netCDF interface by using this
feature, but only at the expense of requiring the
application to set every single data value. The performance
enhancing behavior of this function is dependent on the
particulars of the implementation and dataset format. The
flag value controlled by <b>nc_set_fill()</b> is per netCDF
ID, not per variable or per write. Allowing this to change
affects the degree to which a program can be effectively
parallelized. Given all of this, we state that the use of
this feature may not be available (or even needed) in future
releases. Programmers are cautioned against heavy reliance
upon this feature.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc_setfill(int</b>
<i>ncid</i><b>, int</b> <i>fillmode</i><b>, int*</b>
<i>old_fillemode</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">(Corresponds to
<b>ncsetfill()</b> in version 2)</p>
<p style="margin-left:22%; margin-top: 1em">Determines
whether or not variable prefilling will be done (see above).
The netCDF dataset shall be writable. <i>fillmode</i> is
either <b>NC_FILL</b> to enable prefilling (the default) or
<b>NC_NOFILL</b> to disable prefilling. This function
returns the previous setting in <i>old_fillmode</i>.</p>
<h2>MPP FUNCTION DESCRIPTIONS
<a name="MPP FUNCTION DESCRIPTIONS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Additional
functions for use on SGI/Cray MPP machines (_CRAYMPP). These
are used to set and inquire which PE is the base for MPP for
a particular netCDF. These are only relevant when using the
SGI/Cray ‘‘global’’ Flexible File
I/O layer and desire to have only a subset of PEs to open
the specific netCDF file. For technical reasons, these
functions are available on all platforms. On a platform
other than SGI/Cray MPP, it is as if only processor
available were processor 0.</p>
<p style="margin-left:11%; margin-top: 1em">To use this
feature, you need to specify a communicator group and call
<b>glio_group_mpi()</b> or <b>glio_group_shmem()</b> prior
to the netCDF <b>nc_open()</b> and <b>nc_create()</b>
calls.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc__create_mp(const
char</b> <i>path</i><b>[], int</b> <i>cmode</i><b>,
size_t</b> <i>initialsize</i><b>, int</b> <i>pe</i><b>,
size_t*</b> <i>chunksize</i><b>, int*</b>
<i>ncid</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Like
<b>nc__create()</b> but allows the base PE to be set.</p>
<p style="margin-left:22%; margin-top: 1em">The argument
<i>pe</i> sets the base PE at creation time. In the MPP
environment, <b>nc__create()</b> and <b>nc_create()</b> set
the base PE to processor zero by default.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="89%">
<p style="margin-top: 1em"><b>int nc__open_mp(const
char</b> <i>path</i><b>[], int</b> <i>mode</i><b>, int</b>
<i>pe</i><b>, size_t*</b> <i>chunksize</i><b>, int*</b>
<i>ncid</i><b>)</b></p> </td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Like
<b>nc__open()</b> but allows the base PE to be set. The
argument <i>pe</i> sets the base PE at creation time. In the
MPP environment, <b>nc__open()</b> and <b>nc_open()</b> set
the base PE to processor zero by default.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="57%">
<p style="margin-top: 1em"><b>int nc_inq_base_pe(int</b>
<i>ncid</i><b>, int*</b> <i>pe</i><b>)</b></p></td>
<td width="32%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Inquires of the
netCDF dataset which PE is being used as the base for MPP
use. This is safe to use at any time.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="55%">
<p style="margin-top: 1em"><b>int nc_set_base_pe(int</b>
<i>ncid</i><b>, int</b> <i>pe</i><b>)</b></p></td>
<td width="34%">
</td></tr>
</table>
<p style="margin-left:22%; margin-top: 1em">Resets the base
PE for the netCDF dataset. Only perform this operation when
the affected communicator group synchronizes before and
after the call. This operation is very risky and should only
be contemplated under only the most extreme cases.</p>
<h2>ENVIRONMENT VARIABLES
<a name="ENVIRONMENT VARIABLES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>NETCDF_FFIOSPEC</b></p>
<p style="margin-left:17%;">Specifies the Flexible File I/O
buffers for netCDF I/O when executing under the UNICOS
operating system (the variable is ignored on other operating
systems). An appropriate specification can greatly increase
the efficiency of netCDF I/O -- to the extent that it can
actually surpass FORTRAN binary I/O. This environment
variable has been made a little more generalized, such that
other FFIO option specifications can now be added. The
default specification is <b>bufa:336:2</b>, unless a current
FFIO specification is in operation, which will be honored.
See UNICOS Flexible File I/O for more information.</p>
<h2>MAILING-LISTS
<a name="MAILING-LISTS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Both a mailing
list and a digest are available for discussion of the netCDF
interface and announcements about netCDF bugs, fixes, and
enhancements. To begin or change your subscription to either
the mailing-list or the digest, send one of the following in
the body (not the subject line) of an email message to
"majordomo@unidata.ucar.edu". Use your email
address in place of <i>jdoe@host.inst.domain</i>.</p>
<p style="margin-left:11%; margin-top: 1em">To subscribe to
the netCDF mailing list:</p>
<p style="margin-left:22%;"><b>subscribe netcdfgroup</b>
<i>jdoe@host.inst.domain</i></p>
<p style="margin-left:11%;">To unsubscribe from the netCDF
mailing list:</p>
<p style="margin-left:22%;"><b>unsubscribe netcdfgroup</b>
<i>jdoe@host.inst.domain</i></p>
<p style="margin-left:11%;">To subscribe to the netCDF
digest:</p>
<p style="margin-left:22%;"><b>subscribe netcdfdigest</b>
<i>jdoe@host.inst.domain</i></p>
<p style="margin-left:11%;">To unsubscribe from the netCDF
digest:</p>
<p style="margin-left:22%;"><b>unsubscribe netcdfdigest</b>
<i>jdoe@host.inst.domain</i></p>
<p style="margin-left:11%;">To retrieve the general
introductory information for the mailing list:</p>
<p style="margin-left:22%;"><b>info netcdfgroup</b></p>
<p style="margin-left:11%;">To get a synopsis of other
majordomo commands:</p>
<p style="margin-left:22%;"><b>help</b></p>
<h2>SEE ALSO
<a name="SEE ALSO"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>ncdump</b>(1),
<b>ncgen</b>(1), <b>netcdf</b>(3).</p>
<p style="margin-left:11%; margin-top: 1em"><i>netCDF
User’s Guide</i>, published by the Unidata Program
Center, University Corporation for Atmospheric Research,
located in Boulder, Colorado.</p>
<p style="margin-left:11%; margin-top: 1em">NetCDF home
page at http:/www.unidata.ucar.edu/netcdf.</p>
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