写c++程序时，经常会出现内存泄漏的问题，这里从网上找了一种很麻烦的方法：如果想找到每个cpp文件的内存泄漏，都必须在每个cpp加上如下代码：
#include
#ifdef _DEBUG
#define DEBUG_CLIENTBLOCK new(_CLIENT_BLOCK, __FILE__, __LINE__)
#define new DEBUG_CLIENTBLOCK
#else
#define DEBUG_CLIENTBLOCK
#endif
下面给出一段测试的代码
test.h
#include
void funNew();
test.cpp
#include "text.h"
#include
#ifdef _DEBUG
#define DEBUG_CLIENTBLOCK new(_CLIENT_BLOCK, __FILE__, __LINE__)
#define new DEBUG_CLIENTBLOCK
#else
#define DEBUG_CLIENTBLOCK
#endif
void funNew()
{
int *p = new int();
}
main.cpp
#include
#include
#include "text.h" #include
#ifdef _DEBUG #define DEBUG_CLIENTBLOCK new(_CLIENT_BLOCK, __FILE__, __LINE__) #define new DEBUG_CLIENTBLOCK #else #define DEBUG_CLIENTBLOCK #endif int main() { _CrtSetDbgFlag (_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF); int* p = new int(); funNew(); //delete p; return 0; }
输出
Detected memory leaks!
Dumping objects ->
f:\project1\test.cpp(13) : {157} client block at 0x001E9180, subtype 0, 4 bytes long.
Data: < > 00 00 00 00
f:\project1\main.cpp(17) : {156} client block at 0x001E9140, subtype 0, 4 bytes long.
Data: < > 00 00 00 00
Object dump complete.