C++实现内存泄漏检查

一、实现原理

对应用程序堆内存分配器（C：malloc、calloc、realloc、free，C++：new、delete、new[]、delete[]）进行接管，用链表记录管理堆内存分配和释放，在程序退出时将未释放的内存信息输出至文本。

#pragma once

#include <new>

void* mymalloc(size_t, const char*, size_t);
void* mycalloc(size_t, size_t, const char*, size_t);
void* myrealloc(void*, size_t, const char*, size_t);
void myfree(void *);

#if defined _DEBUG && defined _DETECT_MEMORY_LEAK
#define  malloc(size)			mymalloc (size, __FILE__, __LINE__)
#define  calloc(num, size)		mycalloc (num, size, __FILE__, __LINE__)
#define  realloc(address, size)	myrealloc(address, size, __FILE__, __LINE__)
#define  free(mem_ref)			myfree(mem_ref)

void* __CRTDECL operator new(size_t, const char*, size_t);
void* __CRTDECL operator new[](size_t, const char*, size_t);

void* __CRTDECL operator new(size_t);
void* __CRTDECL operator new(size_t, std::nothrow_t const&) throw();
void* __CRTDECL operator new[](size_t);
void* __CRTDECL operator new[](size_t, std::nothrow_t const&) throw();

void __CRTDECL operator delete(void*, const char*, size_t);
void __CRTDECL operator delete[](void*, const char*, size_t);

void __CRTDECL operator delete(void*) throw();
void __CRTDECL operator delete(void*, std::nothrow_t const&) throw();
void __CRTDECL operator delete[](void*) throw();
void __CRTDECL operator delete[](void*, std::nothrow_t const&) throw();

//void __CRTDECL operator delete(void *, size_t) throw();
//void __CRTDECL operator delete[](void *, size_t) throw();

#define  new					new(__FILE__, __LINE__)
#endif

C++实现内存泄漏检查实现源码下载
https://download.youkuaiyun.com/download/qq_43148810/85101893

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侯捷C++内存管理课件和代码下载
内存池源码下载

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