inline void * __cdecl operator new(size_t size, const char *file, int line){ try { // Allocate the memory check that the allocation was a success and add to the tracker if(size == 0) { size = 1; // Make sure a size of 0 is not sent to malloc } void *ptr = (void *)malloc(size); if(ptr == 0) { throw bad_alloc; } mem_info *m_info = new mem_info(ptr, size, file, line); AddTracker(m_info); return(ptr); } catch(bad_alloc) { // Handle an error fstream mem("leaks.txt"); mem << "MEMORY ALLOCATION ERROR" << "\n"; }};
inline void * __cdecl operator new(size_t size, const char *file, int line){ try { // Allocate the memory check that the allocation was a success and add to the tracker if(size == 0) { size = 1; // Make sure a size of 0 is not sent to malloc } void *ptr = (void *)malloc(size); if(ptr == 0) { throw bad_alloc(); } mem_info *m_info = new mem_info(ptr, size, file, line); AddTracker(m_info); return(ptr); } catch(bad_alloc) { // Handle an error fstream mem("leaks.txt"); mem << "MEMORY ALLOCATION ERROR" << "\n"; }};leaky.cppc:\program files\microsoft visual studio 8\vc\include\list(901) : error C2784: 'bool std::operator ==(const std::list<_Ty,_Ax> &,const std::list<_Ty,_Ax> &)' : could not deduce template argument for 'const std::list<_Ty,_Ax> &' from 'mem_info' c:\program files\microsoft visual studio 8\vc\include\list(1257) : see declaration of 'std::operator ==' c:\program files\microsoft visual studio 8\vc\include\list(898) : while compiling class template member function 'void std::list<_Ty>::remove(const _Ty &)' with [ _Ty=mem_info ] c:\documents and settings\jason\my documents\visual studio 2005\projects\leaky\leaky\leaky.cpp(3) : see reference to class template instantiation 'std::list<_Ty>' being compiled with [ _Ty=mem_info ]c:\program files\microsoft visual studio 8\vc\include\list(901) : error C2784: 'bool std::operator ==(const std::allocator<_Ty> &,const std::allocator<_Other> &) throw()' : could not deduce template argument for 'const std::allocator<_Ty> &' from 'mem_info' c:\program files\microsoft visual studio 8\vc\include\xmemory(174) : see declaration of 'std::operator =='c:\program files\microsoft visual studio 8\vc\include\list(901) : error C2784: 'bool std::operator ==(const std::istream_iterator<_Ty,_Elem,_Traits,_Diff> &,const std::istream_iterator<_Ty,_Elem,_Traits,_Diff> &)' : could not deduce template argument for 'const std::istream_iterator<_Ty,_Elem,_Traits,_Diff> &' from 'mem_info' c:\program files\microsoft visual studio 8\vc\include\iterator(266) : see declaration of 'std::operator =='c:\program files\microsoft visual studio 8\vc\include\list(901) : error C2784: 'bool std::operator ==(const std::istreambuf_iterator<_Elem,_Traits> &,const std::istreambuf_iterator<_Elem,_Traits> &)' : could not deduce template argument for 'const std::istreambuf_iterator<_Elem,_Traits> &' from 'mem_info' c:\program files\microsoft visual studio 8\vc\include\xutility(2143) : see declaration of 'std::operator =='c:\program files\microsoft visual studio 8\vc\include\list(901) : error C2784: 'bool std::operator ==(const std::reverse_iterator<_RanIt> &,const std::reverse_iterator<_RanIt2> &)' : could not deduce template argument for 'const std::reverse_iterator<_RanIt> &' from 'mem_info' c:\program files\microsoft visual studio 8\vc\include\xutility(1826) : see declaration of 'std::operator =='c:\program files\microsoft visual studio 8\vc\include\list(901) : error C2784: 'bool std::operator ==(const std::pair<_Ty1,_Ty2> &,const std::pair<_Ty1,_Ty2> &)' : could not deduce template argument for 'const std::pair<_Ty1,_Ty2> &' from 'mem_info' c:\program files\microsoft visual studio 8\vc\include\utility(60) : see declaration of 'std::operator =='c:\program files\microsoft visual studio 8\vc\include\list(901) : error C2676: binary '==' : 'mem_info' does not define this operator or a conversion to a type acceptable to the predefined operatorBuild Time 0:02class mem_info{public: mem_info(void *mptr, size_t msize, const char* mfile, int mline) : ptr(mptr), size(msize), file(mfile), line(mline) {}; // Set up the class ~mem_info(); // Cleanup the class void * GetPointer(); // Get the address of the object size_t GetSize(); // Get the size of the object const char* GetFile(); // Get the file name int GetLine(); // Get the line numberprivate: void *ptr; // The address of the allocated memory size_t size; // The size on the memory allocated const char* file; // The file in which the allocation accured int line; // The line in which the allocation accured};[source land="cpp"]#include "leaky.h"list<mem_info> tracker;inline void * __cdecl operator new(size_t size, const char *file, int line){ try { // Allocate the memory check that the allocation was a success and add to the tracker if(size == 0) { size = 1; // Make sure a size of 0 is not sent to malloc } void *ptr = (void *)malloc(size); if(ptr == 0) { throw bad_alloc(); } mem_info *m_info = new mem_info(ptr, size, file, line); AddTracker(m_info); return(ptr); } catch(bad_alloc) { // Handle an error fstream mem("leaks.txt"); mem << "MEMORY ALLOCATION ERROR" << "\n"; }};inline void __cdecl operator delete(void *p){ RemoveTracker((void *)p); free(p);};void AddTracker(mem_info minfo){ tracker.push_back(minfo);};void RemoveTracker(void *ptr){ list<mem_info>::iterator iter; for(iter = tracker.begin(); iter != tracker.end(); iter++) { if((*iter).GetPointer() == ptr) { tracker.remove((*iter)); break; } }};void ReportLeaks(){ list<mem_info>::iterator iter; fstream mem("leaks.txt"); // Report the memory leaks mem << "\tAddress\t" << "\tSize\t" << "\tFile\t" << "\tLine\t" << "\n\n"; mem << "\t----------" << "----------" << "----------" << "----------" << "\n\n"; for(iter = tracker.begin(); iter != tracker.end(); iter++) { mem << "\t" << (*iter).GetPointer() << "\t\t" << (*iter).GetSize() << "\t\t" << (*iter).GetFile() << "\t\t" << (*iter).GetLine() << "\t\n\n"; } for(iter = tracker.begin(); iter != tracker.end(); iter++) { free((*iter).GetPointer()); // Make sure that no memory is left allocated } mem.close();};// return file nameconst char* mem_info::GetFile(){ return file;};// return line numberint mem_info::GetLine(){ return line;};// return address of objectvoid * mem_info::GetPointer(){ return ptr;};// return size of objectsize_t mem_info::GetSize(){ return size;};/////////////////////////////////////////////////////////////////////// Detect memory leaks ///////////////////////////////////////////////////////////////////////#include <cstddef> // For size_t#include <list> // For list#include <stdlib.h> // For malloc and free#include <stdexcept> // For bad_alloc#include <fstream> // For file accessusing std::size_t;using std::bad_alloc;using std::list;using std::fstream;// replace the default new with new modified version#ifdef MEM_DEBUG#define new new(__FILE__, __LINE__)#endifinline void * __cdecl operator new(size_t size, const char *file, int line);inline void __cdecl operator delete(void *p);class mem_info{public: mem_info(void *mptr, size_t msize, const char* mfile, int mline) : ptr(mptr), size(msize), file(mfile), line(mline) {}; // Set up the class ~mem_info(); // Cleanup the class void * GetPointer(); // Get the address of the object size_t GetSize(); // Get the size of the object const char* GetFile(); // Get the file name int GetLine(); // Get the line numberprivate: void *ptr; // The address of the allocated memory size_t size; // The size on the memory allocated const char* file; // The file in which the allocation accured int line; // The line in which the allocation accured};void AddTracker(mem_info *minfo); // Add the allocated memory info to the listvoid RemoveTracker(void *ptr); // Remove the allocated memory info from the listvoid ReportLeaks(); // Report the leaksThis topic has been locked by a moderator. 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