Controls the recognition of superfluous commas in enumerations.
#pragma warn_extracomma on | off | reset
If you enable this pragma, the compiler issues a warning message when it encounters a trailing comma in enumerations. For example, Warning about extra commas is acceptable source code but generates a warning message when you enable this setting.
#pragma warn_extracomma on
enum { mouse, cat, dog, };
/* WARNING: compiler expects an identifier after final comma. */
The compiler ignores terminating commas in enumerations when compiling source code that conforms to the ISO/IEC 9899-1999 ("C99") standard.
By default, this pragma is disabled.