C++内存泄漏检测工具

在程序中增加相应的内存检测工具

#define CRTDBG MAP ALLOC
#include
#include

#ifdef DEBUG
#ifndef DBGNEW
#define DBG_NEW new (_NORMAL_BLOCK，_FILE_LINE_)
#define new DBG NEW
#endif
#endif

_CrtDumpMemoryLeaks();

当没有释放内存时候：

#define _CRT_SECURE_NO_WARNINGS#define CRTDBG MAP ALLOC#include #include #include#include#include#ifdef DEBUG#ifndef DBGNEW#define DBG_NEW new (_NORMAL_BLOCK，_FILE_LINE_)#define new DBG NEW#endif#endifusing namespace std;void A_live() {int* p = new int[1024];//挥霍p[0] = 0;//申请的内存必须释放//delete[] p;}int main() {for (int i = 0; i < 5; i++){A_live();Sleep(50);_CrtDumpMemoryLeaks();system("pause");return 0;}}

增加了delete时候：

#define _CRT_SECURE_NO_WARNINGS#define CRTDBG MAP ALLOC#include #include #include#include#include#ifdef DEBUG#ifndef DBGNEW#define DBG_NEW new (_NORMAL_BLOCK，_FILE_LINE_)#define new DBG NEW#endif#endifusing namespace std;void A_live() {int* p = new int[1024];//挥霍p[0] = 0;//申请的内存必须释放delete[] p;}int main() {for (int i = 0; i < 5; i++){A_live();Sleep(50);_CrtDumpMemoryLeaks();system("pause");return 0;}}