C++ 메모리 관리: 메모리 할당 및 할당 해제 추적

#include <iostream>
#include <cstdlib>
#include <valgrind/valgrind.h>

int main()
{
    // 分配内存
    int* ptr = new int;

    // 使用内存
    *ptr = 42;
    std::cout << *ptr << std::endl;

    // 释放内存
    delete ptr;

    return 0;
}

valgrind --leak-check=full ./my_program

==22685== Memcheck, a memory error detector
==22685== Copyright (C) 2002-2023, and GNU GPL'd by, Nicholas Nethercote et al.
==22685== Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info
==22685== Command: ./my_program
==22685==
==22685== HEAP SUMMARY:
==22685==     in use at exit: 0 bytes in 0 blocks
==22685==   total heap usage: 1 allocs, 1 frees, 4 bytes allocated
==22685==
==22685== All heap blocks were freed -- no leaks are possible
==22685==
==22685== For counts of detected and suppressed errors, rerun with: -v
==22685== Use --track-origins=yes to see where unfreed objects were allocated
==22685== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)