Function SubVerifyInt8Int64

Test/SubVerify.cpp:2947–3003

};

void SubVerifyInt8Int64()
{
    size_t i;

    for( i = 0; i < COUNTOF(int8_int64); ++i )
    {
        std::int8_t ret;
        if( SafeSubtract(int8_int64[i].x, int8_int64[i].y, ret) != int8_int64[i].fExpected )
        {
            cerr << "Error in case int8_int64: ";
            cerr << hex << setw(2) << setfill('0') << (0xFF & (int)int8_int64[i].x) << ", ";
            cerr << hex << setw(16) << setfill('0') << int8_int64[i].y << ", ";
            cerr << "expected = " << int8_int64[i].fExpected << endl;
        }

        // Now test throwing version
        bool fSuccess = true;
        try
        {
            SafeInt<std::int8_t> si(int8_int64[i].x);
            si -= int8_int64[i].y;
        }
        catch(...)
        {
            fSuccess = false;
        }

        if( fSuccess != int8_int64[i].fExpected )
        {
            cerr << "Error in case int8_int64 throw (1): ";
            cerr << hex << setw(2) << setfill('0') << (0xFF & (int)int8_int64[i].x) << ", ";
            cerr << hex << setw(16) << setfill('0') << int8_int64[i].y << ", ";
            cerr << "expected = " << int8_int64[i].fExpected << endl;
        }

        // Also need to test the version that assigns back out
        // to a plain int, as it has different logic
        fSuccess = true;
        try
        {
            std::int8_t x(int8_int64[i].x);
            x -= SafeInt<std::int64_t>(int8_int64[i].y);
        }
        catch(...)
        {
            fSuccess = false;
        }

        if( fSuccess != int8_int64[i].fExpected )
        {
            cerr << "Error in case int8_int64 throw (2): ";
            cerr << hex << setw(2) << setfill('0') << (0xFF & (int)int8_int64[i].x) << ", ";
            cerr << hex << setw(16) << setfill('0') << int8_int64[i].y << ", ";
            cerr << "expected = " << int8_int64[i].fExpected << endl;
        }
    }
}