c++ - 运行时检查失败 #2 - 围绕变量“osvi”的堆栈在 mfc 应用程序上已损坏

Question

我一直在互联网上搜索，我不知道为什么会发生这种情况，这并不是一个明显的数组问题。

这是功能：

BOOL IsOsCompatible()
{
    BOOL retVal = 0;
    OSVERSIONINFO osvi;
    ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
    osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
    GetVersionEx(&osvi);
    if(osvi.dwMajorVersion == 6)
    {
        if(osvi.dwMinorVersion == 0)
        {
            if(SendErrorM("This program has not been tested on Windows Vista(TM).\nAre you sure you want to use it?",MB_YESNO) == IDYES)
                retVal = 1;
        }
        else if(osvi.dwMinorVersion == 1)
        { 
            retVal = 1;
        }
        else if(osvi.dwMinorVersion == 2)
        {
            if(SendErrorM("This program has not been tested on Windows 8(TM).\nAre you sure you want to use it?",MB_YESNO) == IDYES)
                retVal = 1;
        }
    }
    else
        SendErrorM("Your windows verison is incompatible with the minimum requirements of this application.",NULL);

    return retVal;

}

有任何想法吗？

Answer 1

AnOSVERSIONINFOEX大于OSVERSIONINFO, 所以

    ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));

将在“外部”（周围）写入零osvi。

你要

OSVERSIONINFOEX osvi;
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));

或（通常更安全）

OSVERSIONINFOEX osvi;
ZeroMemory(&osvi, sizeof(osvi));

Answer 2

额外的 X 是你的问题：

OSVERSIONINFO osvi;
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));

Windows A、W 和 X 很烂。

避免宏：

template <typename T>
inline void zero_memory(T& m) {
    std::memset(&T, 0, sizeof(T));
}