学步园

#define _CRTDBG_MAP_ALLOC //定位内存泄露所在file
#include <stdlib.h>
#include <crtdbg.h>

void AllocMemory(char* buffer, int sz)
{
	buffer = (char*) malloc(sz);
}

_CrtMemState cms1, cms2, cms3;

int main()
{
	_CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);

	_CrtMemCheckpoint(&cms1);//内存状态检测点1

	char* data = NULL;

	AllocMemory(data, 100);

	_CrtMemCheckpoint(&cms2);//内存状态检测点1

	if (_CrtMemDifference(&cms3, &cms1, &cms2))//比较两个内存检测点的内存差异，差异结果存入cms3中
		_CrtMemDumpStatistics(&cms3);//统计内存状态不同内存情况

	_CrtDumpMemoryLeaks();

	return 0;
}