Defined in header <complex.h>

Defined in header <math.h>

Defined in header <stdio.h>

Defined in header <time.h>

Defined in header <stdio.h>

Usage type specifier for the character types (char, signed char, and unsigned char)

Variadic functions are functions (e.g. printf) which take a variable

Defined in header <locale.h>

Defined in header <wctype.h>

Defined in header <stdio.h>