/usr/include/glib-2.0/glib/gdatetime.h is in libglib2.0-dev 2.42.1-1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (C) 2009-2010 Christian Hergert <chris@dronelabs.com>
* Copyright © 2010 Codethink Limited
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of the
* licence, or (at your option) any later version.
*
* This is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA.
*
* Authors: Christian Hergert <chris@dronelabs.com>
* Thiago Santos <thiago.sousa.santos@collabora.co.uk>
* Emmanuele Bassi <ebassi@linux.intel.com>
* Ryan Lortie <desrt@desrt.ca>
*/
#ifndef __G_DATE_TIME_H__
#define __G_DATE_TIME_H__
#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
#error "Only <glib.h> can be included directly."
#endif
#include <glib/gtimezone.h>
G_BEGIN_DECLS
/**
* G_TIME_SPAN_DAY:
*
* Evaluates to a time span of one day.
*
* Since: 2.26
*/
#define G_TIME_SPAN_DAY (G_GINT64_CONSTANT (86400000000))
/**
* G_TIME_SPAN_HOUR:
*
* Evaluates to a time span of one hour.
*
* Since: 2.26
*/
#define G_TIME_SPAN_HOUR (G_GINT64_CONSTANT (3600000000))
/**
* G_TIME_SPAN_MINUTE:
*
* Evaluates to a time span of one minute.
*
* Since: 2.26
*/
#define G_TIME_SPAN_MINUTE (G_GINT64_CONSTANT (60000000))
/**
* G_TIME_SPAN_SECOND:
*
* Evaluates to a time span of one second.
*
* Since: 2.26
*/
#define G_TIME_SPAN_SECOND (G_GINT64_CONSTANT (1000000))
/**
* G_TIME_SPAN_MILLISECOND:
*
* Evaluates to a time span of one millisecond.
*
* Since: 2.26
*/
#define G_TIME_SPAN_MILLISECOND (G_GINT64_CONSTANT (1000))
/**
* GTimeSpan:
*
* A value representing an interval of time, in microseconds.
*
* Since: 2.26
*/
typedef gint64 GTimeSpan;
/**
* GDateTime:
*
* `GDateTime` is an opaque structure whose members
* cannot be accessed directly.
*
* Since: 2.26
*/
typedef struct _GDateTime GDateTime;
GLIB_AVAILABLE_IN_ALL
void g_date_time_unref (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_ref (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_new_now (GTimeZone *tz);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_new_now_local (void);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_new_now_utc (void);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_new_from_unix_local (gint64 t);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_new_from_unix_utc (gint64 t);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_new_from_timeval_local (const GTimeVal *tv);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_new_from_timeval_utc (const GTimeVal *tv);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_new (GTimeZone *tz,
gint year,
gint month,
gint day,
gint hour,
gint minute,
gdouble seconds);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_new_local (gint year,
gint month,
gint day,
gint hour,
gint minute,
gdouble seconds);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_new_utc (gint year,
gint month,
gint day,
gint hour,
gint minute,
gdouble seconds);
GLIB_AVAILABLE_IN_ALL
G_GNUC_WARN_UNUSED_RESULT
GDateTime * g_date_time_add (GDateTime *datetime,
GTimeSpan timespan);
GLIB_AVAILABLE_IN_ALL
G_GNUC_WARN_UNUSED_RESULT
GDateTime * g_date_time_add_years (GDateTime *datetime,
gint years);
GLIB_AVAILABLE_IN_ALL
G_GNUC_WARN_UNUSED_RESULT
GDateTime * g_date_time_add_months (GDateTime *datetime,
gint months);
GLIB_AVAILABLE_IN_ALL
G_GNUC_WARN_UNUSED_RESULT
GDateTime * g_date_time_add_weeks (GDateTime *datetime,
gint weeks);
GLIB_AVAILABLE_IN_ALL
G_GNUC_WARN_UNUSED_RESULT
GDateTime * g_date_time_add_days (GDateTime *datetime,
gint days);
GLIB_AVAILABLE_IN_ALL
G_GNUC_WARN_UNUSED_RESULT
GDateTime * g_date_time_add_hours (GDateTime *datetime,
gint hours);
GLIB_AVAILABLE_IN_ALL
G_GNUC_WARN_UNUSED_RESULT
GDateTime * g_date_time_add_minutes (GDateTime *datetime,
gint minutes);
GLIB_AVAILABLE_IN_ALL
G_GNUC_WARN_UNUSED_RESULT
GDateTime * g_date_time_add_seconds (GDateTime *datetime,
gdouble seconds);
GLIB_AVAILABLE_IN_ALL
G_GNUC_WARN_UNUSED_RESULT
GDateTime * g_date_time_add_full (GDateTime *datetime,
gint years,
gint months,
gint days,
gint hours,
gint minutes,
gdouble seconds);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_compare (gconstpointer dt1,
gconstpointer dt2);
GLIB_AVAILABLE_IN_ALL
GTimeSpan g_date_time_difference (GDateTime *end,
GDateTime *begin);
GLIB_AVAILABLE_IN_ALL
guint g_date_time_hash (gconstpointer datetime);
GLIB_AVAILABLE_IN_ALL
gboolean g_date_time_equal (gconstpointer dt1,
gconstpointer dt2);
GLIB_AVAILABLE_IN_ALL
void g_date_time_get_ymd (GDateTime *datetime,
gint *year,
gint *month,
gint *day);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_year (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_month (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_day_of_month (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_week_numbering_year (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_week_of_year (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_day_of_week (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_day_of_year (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_hour (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_minute (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_second (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint g_date_time_get_microsecond (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gdouble g_date_time_get_seconds (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gint64 g_date_time_to_unix (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gboolean g_date_time_to_timeval (GDateTime *datetime,
GTimeVal *tv);
GLIB_AVAILABLE_IN_ALL
GTimeSpan g_date_time_get_utc_offset (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
const gchar * g_date_time_get_timezone_abbreviation (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gboolean g_date_time_is_daylight_savings (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_to_timezone (GDateTime *datetime,
GTimeZone *tz);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_to_local (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
GDateTime * g_date_time_to_utc (GDateTime *datetime);
GLIB_AVAILABLE_IN_ALL
gchar * g_date_time_format (GDateTime *datetime,
const gchar *format) G_GNUC_MALLOC;
G_END_DECLS
#endif /* __G_DATE_TIME_H__ */
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