c - Valgrind 结果干净但分配多于释放

Question

我从 Valgrind 得到这个结果:

    ==24810== HEAP SUMMARY:
    ==24810==     in use at exit: 0 bytes in 0 blocks
    ==24810==   total heap usage: 9 allocs, 6 frees, 0 bytes allocated
    ==24810== 
    ==24810== LEAK SUMMARY:
    ==24810==    definitely lost: 0 bytes in 0 blocks
    ==24810==    indirectly lost: 0 bytes in 0 blocks
    ==24810==      possibly lost: 0 bytes in 0 blocks
    ==24810==    still reachable: 0 bytes in 0 blocks
    ==24810==         suppressed: 0 bytes in 0 blocks

它说没有内存泄漏。在我看来这是一个不错的结果。但是，这些 9 allocs，6 frees 怎么样？看起来我还没有在某处释放一些内存。我检查了代码，有3个全局常量指针。也许它们不被视为错误，但打印为未免费？

我应该担心这个还是应该认为代码没有错误？ 谢谢你们。 ....只是试图理解所有 ANSI C 与指针和内存分配的麻烦:)))

格言

Answer 1

在 valgrind 网站上 http://valgrind.org/docs/manual/quick-start.html#quick-start.interpret

"definitely lost": your program is leaking memory -- fix it!

"probably lost": your program is leaking memory, unless you're doing funny things with pointers (such as moving them to point to the middle of a heap block).

所以对于你的情况，你的程序应该是好的。