Defined in header <stddef.h>

Defined in header <wchar.h>

The typedef declaration provides a way to declare an identifier as a type alias, to be used to replace a possibly complex type name. The

Defined in header <math.h>

Defined in header <signal.h>

Defined in header <math.h>

Usage const

Defined in header <complex.h>

Defined in header <math.h>

If the declarator or type specifier that declares the identifier appears outside of any block or list of parameters, the identifier has file scope, which terminates at the