Defined in header <ctype.h>

Defined in header <<fenv.h>>

Defined in header <wctype.h>

Defined in header <stdlib.h>

Allows values of floating type to be used directly in expressions. Syntax A floating constant is a

When initializing an object of scalar type, the initializer must

Defined in header <math.h>

Usage break statement:

Defined in header <stdatomic.h>

Defined in header <threads.h>