heaplog

 #ifdef _DEBUG

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

 #define _BUF_SIZE 128

 static const char* g_FileName = "HeapLog.txt";
 static const char* g_AllocateFail = "分配失败 --- 当前情况(分配:%d, 释放:%d)\x0a";
 static const char* g_AllocateOK = "分配成功(地址:%p, 大小:%d) --- 当前情况(分配:%d, 释放:%d)\x0a";
 static const char* g_FreeOK = "释放成功(地址:%p) --- 当前情况(分配:%d, 释放:%d)\x0a";
 static int g_AllocateNum = ;
 static int g_FreeNum = ;
 static char g_Buf[_BUF_SIZE];

 void* operator new(size_t s)
 {
     void* p = malloc(s);

     FILE* pF;
     fopen_s(&pF, g_FileName, "a");

     if (!p)
         sprintf_s(g_Buf, _BUF_SIZE, g_AllocateFail, g_AllocateNum, g_FreeNum);
     else
     {
         g_AllocateNum++;
         sprintf_s(g_Buf, _BUF_SIZE, g_AllocateOK, p, s, g_AllocateNum, g_FreeNum);
     }

     fwrite(g_Buf, sizeof(char), strlen(g_Buf), pF);
     fflush(pF);
     fclose(pF);
     return p;
 }

 void operator delete(void* p)
 {
     free(p);
     g_FreeNum++;

     FILE* pF;
     fopen_s(&pF, g_FileName, "a");

     sprintf_s(g_Buf, _BUF_SIZE, g_FreeOK, p, g_AllocateNum, g_FreeNum);
     fwrite(g_Buf, sizeof(char), strlen(g_Buf), pF);
     fflush(pF);
     fclose(pF);
 }

 void* operator new[](size_t s)
 {
     return operator new(s);
 }

 void operator delete[](void* p)
 {
     operator delete(p);
 }

 #endif