Defined in header <stdlib.h>

Defined in header <math.h>

Defined in header <ctype.h>

Defined in header <math.h>

Defined in header <time.h>

Defined in header <wchar.h>

A declaraton of an object may provide its initial value through the

Defined in header <complex.h>

Defined in header <wctype.h>

Usage do-while loop: