* After every QB64 command is translated to C++, the compiler adds special code sections to check for [[ON TIMER (n)]] events and errors that may have occured in the last function call. Disabling error checking with the [[$CHECKING]]:OFF directive prevents the compiler from adding the extra code sections.
* Setting [[$CHECKING]]:OFF is only designed for 100% stable, errorless sections of code, where every CPU cycle saved counts, such as in a software 3D texture mapper, for example.