/usr/include/ctpp2/CTPP2VMArgStack.hpp is in libctpp2-dev 2.8.3-15.
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) 2004 - 2011 CTPP Team
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the CTPP Team nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* CTPP2VMArgStack.hpp
*
* $CTPP$
*/
#ifndef _CTPP2_VM_ARG_STACK_HPP__
#define _CTPP2_VM_ARG_STACK_HPP__ 1
/**
@file CTPP2VMArgStack.hpp
@brief Virtual Machine stack of arguments
*/
#include "CDT.hpp"
namespace CTPP // C++ Template Engine
{
// FWD
class VM;
/**
@class VMArgStack CTPP2VMCodeStack.hpp <CTPP2VMCodeStack.hpp>
@brief Virtual Machine stack of arguments
<pre>
+----+ <-- iMaxStackSize
|void|
|void|
|----| <-- iStackPointer
|data|
|data|
| .. |
|data| <-- iBasePointer
|data|
| .. |
|data|
+----+ <-- 0
</pre>
*/
class CTPP2DECL VMArgStack
{
public:
/**
@brief Constructor
@param iIMaxStackSize - maximal stack size
*/
VMArgStack(const INT_32 iIMaxStackSize = 4096);
/**
@brief Save base pointer
@param iOffset - offset from top of stack
*/
void SaveBasePointer(const UINT_32 iOffset = 0);
/**
@brief Restore previous base pointer
*/
void RestoreBasePointer();
/**
@brief Get stack usage factor
@return stack depth
*/
INT_32 GetSize() const;
/**
@brief Push element into stack
@param oCDT - element to push
@return stack depth
*/
INT_32 PushElement(const CDT & oCDT);
/**
@brief Remove top stack element
@return stack depth
*/
INT_32 PopElement();
/**
@brief Get element from specified position
@param iPos - element position
@return Stack element
*/
CDT & GetElement(const INT_32 iPos);
/**
@brief Get top stack element
@return Stack element
*/
inline CDT & GetTopElement(const INT_32 iPos = 0) { return GetElement(iStackPointer + iPos); }
/**
@brief Clear stack on specified depth
@param iDepth - number of elements to clear
@return stack depth
*/
INT_32 ClearStack(const INT_32 iDepth);
/**
@brief Reset stack of arguments to default state
*/
void Reset();
/**
@brief A destructor
*/
~VMArgStack() throw();
private:
friend class VM;
/**
@brief Copy Constructor
*/
VMArgStack(const VMArgStack & oRhs);
/**
@brief Copy operator
*/
VMArgStack & operator=(const VMArgStack & oRhs);
/** Maximal stack size */
const INT_32 iMaxStackSize;
/** Current stack size */
INT_32 iStackPointer;
/** Base pointers */
STLW::vector<INT_32> vBasePointers;
/** Stack array */
CDT * aStack;
/**
@brief Get stack frame from top of stack
@param iTopOffset - offset of frame
@return pointer to start of frame
*/
inline CDT * GetStackFrame(const INT_32 iTopOffset = 0) { return &aStack[iStackPointer + iTopOffset]; }
};
} // namespace CTPP
#endif // _CTPP2_VM_ARG_STACK_HPP__
// End.
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