Function error

deps/opencv/modules/core/src/system.cpp:549–576

}

void error( const Exception& exc )
{
    if (customErrorCallback != 0)
        customErrorCallback(exc.code, exc.func.c_str(), exc.err.c_str(),
                            exc.file.c_str(), exc.line, customErrorCallbackData);
    else
    {
        const char* errorStr = cvErrorStr(exc.code);
        char buf[1 << 16];

        sprintf( buf, "OpenCV Error: %s (%s) in %s, file %s, line %d",
            errorStr, exc.err.c_str(), exc.func.size() > 0 ?
            exc.func.c_str() : "unknown function", exc.file.c_str(), exc.line );
        fprintf( stderr, "%s\n", buf );
        fflush( stderr );
#  ifdef __ANDROID__
        __android_log_print(ANDROID_LOG_ERROR, "cv::error()", "%s", buf);
#  endif
    }

    if(breakOnError)
    {
        static volatile int* p = 0;
        *p = 0;
    }

    throw exc;
}

CvErrorCallback
redirectError( CvErrorCallback errCallback, void* userdata, void** prevUserdata)