Question

I m在C++运行一个迭代程序,在完成第一个迭代之后,我从第二个错误开始出现以下错误:

Heap block at 00000000212005D0 modified at 0000000021200674 past requested size of 94 Windows has triggered a breakpoint in myProject.exe.

This may be due to a corruption of the heap, which indicates a bug in myProject.exe or any of the DLLs it has loaded.

This may also be due to the user pressing F12 while myProject.exe has focus.

产出窗口可能有更多的诊断信息。

在显示这一错误的同时,视力-C++打开了破碎机。

extern "C" _CRTIMP int __cdecl _CrtIsValidHeapPointer(
        const void * pUserData
        )
{
        if (!pUserData)
            return FALSE;

        if (!_CrtIsValidPointer(pHdr(pUserData), sizeof(_CrtMemBlockHeader), FALSE))
            return FALSE;

        return HeapValidate( _crtheap, 0, pHdr(pUserData) );
}

这一错误的原因是什么?

Answer 1

这一节是检查问题的有效性的方法,而不是问题的根源。

您最有可能处理memory corruption,这种腐败可能难以减少。您的最佳工具是操作一种记忆分析器工具(例如 Pur),或者,如果密码库很小,则通过它去除,直到你找到来源。

当然,任何不明确的行为都可能导致这种情况。最常见的来源是:

forgetting to return from a function that defines a return type
deleting objects multiple times
deleting derived objects through pointers to a base class with no virtual destructor
invalid use of casts (C-style casts, const_cast, reinterpret_cast)
accessing memory you don t own (writing beyond the bounds of allocated memory)
etc. (feel free to add here)

I d start with a full rebuild though... you never know!

Answer 2

我要补充的是,如果你愿意获得净化,那么val也是一种很好的工具,而且很可能可以弥补这一错误。

同样,由于你感到悲伤,你必须再次建设你的项目(如纯洁)。你们只能经受val笑,val也很快。

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