Defined in header <threads.h>

Usage atomic type specifier and

Defined in header <complex.h>

Queries size of the object or type. Used when actual size of the object must be known. Syntax

Defined in header <math.h>

Causes the remaining portion of the enclosing for,

Defined in header <float.h>

Usage int

Executes a statement repeatedly, until the value of expression becomes equal to zero. The test takes place before each

Defined in header <stdatomic.h>