Defined in header <wctype.h>

Defined in header <complex.h>

Defined in header <fenv.h>

Defined in header <wchar.h>

Defined in header <string.h>

Defined in header <<fenv.h>>

Defined in header <wchar.h>

Defined in header <math.h>

Syntax _Static_assert ( expression

Defined in header <stdlib.h>