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Using Run-Time Checks Without the C Run-Time Library

If you link your program without the C run-time library, using /NODEFAULTLIB, and want to use run-time checks, you must link with RunTmChk.lib.

_RTC_Initialize initializes your program for run-time checks. If you do not link with the C run-time library, you must check to see whether your program is compiled with run-time error checks before calling _RTC_Initialize, as follows:

#ifdef __MSVC_RUNTIME_CHECKS
    _RTC_Initialize();
#endif

If you do not link with the C run-time library, you must also define a function called _CRT_RTC_INITW. _CRT_RTC_INITW installs your user-defined function as the default error reporting function, as follows:

// C version:
_RTC_error_fnW __cdecl _CRT_RTC_INITW(
        void *res0, void **res1, int res2, int res3, int res4)
{
    // set the error handler.
    return &MyErrorFunc; 
}

// C++ version:
extern "C" _RTC_error_fnW __cdecl _CRT_RTC_INITW(
       void *res0, void **res1, int res2, int res3, int res4)
{
    // set the error handler:
    return &MyErrorFunc;
}

After you have installed the default error reporting function, you can install additional error reporting functions with _RTC_SetErrorFuncW. For more information, see _RTC_SetErrorFuncW.

See Also

Tasks

How to: Use Native Run-Time Checks