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// **************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl.html *
// * Copyright (C) ZenJu (zenju AT gmx DOT de) - All Rights Reserved *
// **************************************************************************
#ifndef DEBUGNEW_H_INCLUDED
#define DEBUGNEW_H_INCLUDED
#include <string>
#include <sstream>
#include <cstdlib> //malloc(), free()
#ifndef _MSC_VER
#error currently for use with MSC only
#endif
/*
Better std::bad_alloc
---------------------
overwrite "operator new" to automatically write mini dump and get info about bytes requested
1. Compile "debug_new.cpp"
2. C/C++ -> Advanced: Forced Include File: zen/debug_new.h
Minidumps http://msdn.microsoft.com/en-us/library/windows/desktop/ee416349(v=vs.85).aspx
---------
1. Compile "debug_new.cpp"
2. Compile "release" build with:
- C/C++ -> General: Debug Information Format: "Program Database" (/Zi).
- C/C++ -> Optimization: Omit Frame Pointers: No (/Oy-) - avoid call stack mess up!
- Linker -> Debugging: Generate Debug Info: Yes (/DEBUG)
- Linker -> Optimization: References: Yes (/OPT:REF).
- Linker -> Optimization: Enable COMDAT Folding: Yes (/OPT:ICF).
Optional:
- C/C++ -> Optimization: Disabled (/Od)
*/
namespace mem_check
{
class BadAllocDetailed : public std::bad_alloc
{
public:
explicit BadAllocDetailed(size_t allocSize)
{
errorMsg = "Memory allocation failed: ";
errorMsg += numberToString(allocSize);
}
~BadAllocDetailed() throw() {}
virtual const char* what() const throw()
{
return errorMsg.c_str();
}
private:
template <class T>
static std::string numberToString(const T& number) //convert number to string the C++ way
{
std::ostringstream ss;
ss << number;
return ss.str();
}
std::string errorMsg;
};
#ifdef _MSC_VER
void writeMinidump();
#endif
}
inline
void* operator new(size_t size)
{
void* newMem = ::malloc(size);
if (!newMem)
{
#ifdef _MSC_VER
mem_check::writeMinidump();
#endif
throw mem_check::BadAllocDetailed(size);
}
return newMem;
}
inline
void operator delete(void* ptr)
{
::free(ptr);
}
inline
void* operator new[](size_t size)
{
return operator new(size);
}
inline
void operator delete[](void* ptr)
{
operator delete(ptr);
}
#endif // DEBUGNEW_H_INCLUDED
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