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.csdn.net/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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