运行时检查失败＃2 - 变量'osvi'周围的堆栈在mfc应用程序中被破坏

Question

我一直在搜索互联网，我不知道为什么发生这种情况，这不是一个明显的数组问题。

这里的功能：

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; 

} 

任何想法？

Answer 1

一个OSVERSIONINFOEX是除OSVERSIONINFO大，因此

ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); 

将写 “外侧”（约）osvi零。

你想

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)); 

的Windows A，W和X吸。

避免宏：

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