use modules #define _CRTDBG_MAP_ALLOC#include #include int main() { _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF); //test int* leak = new int[10]; return 0; }If something appears like this, memory leakage exists. Else, it doesn't exists.