Used to enable and disable the run-time error checks feature, in conjunction with the runtime_checks pragma. Syntax /RTC1 /RTCc /RTCs /RTCu Arguments /RTC1 Equivalent to /RTCsu. /RTCc Reports when a value is assigned to a smaller data type and results in a data loss. For example, it reports if a short type value of 0x0101 is assigned to a variable of type char. This option can report situations in
![/RTC (Run-time error checks)](https://cdn-ak-scissors.b.st-hatena.com/image/square/d6e4cb632c7025e9f5e05fd314fbf6dcd6144e8d/height=288;version=1;width=512/https%3A%2F%2Flearn.microsoft.com%2Fen-us%2Fmedia%2Fopen-graph-image.png)