如何判断我正在运行的Microsoft C++代码是否使用 /EHa 开关编译？

Question

我需要确保我使用的标头是使用/EHa 编译器开关编译的？

我该怎么做？

Answer 1

inline bool CodeHasEHaSwitch()
{
bool dtorCalled = false;
struct CCheckEHaSwitch
{
CCheckEHaSwitch( bool& dtorCalled) : dtorCalled( dtorCalled ) {}
~CCheckEHaSwitch() {  dtorCalled = true; }
bool& dtorCalled;
static void Win32ExceptionTranslator( unsigned int nExceptionCode,
EXCEPTION_POINTERS *pExceptionInfo )
{  throw nExceptionCode; }
};
_se_translator_function pfnPrevSeTranslator =
_set_se_translator( CCheckEHaSwitch::Win32ExceptionTranslator );
try
{
CCheckEHaSwitch test( dtorCalled );
*((int*)0) = 0;  // generate access violation
}
catch (unsigned int)
{
}
_set_se_translator( pfnPrevSeTranslator );
return dtorCalled;
}