Terminates current function and returns specified value to the caller function. Syntax

Defined in header <wctype.h>

Defined in header <stdatomic.h>

Defined in header <wchar.h>

Queries the alignment requirement of its operand type. Syntax

Several varieties of expressions are known as constant expressions. Preprocessor constant expression The

Defined in header <stdlib.h>

If the macro constant __STDC_NO_THREADS__(C11) is defined by the compiler, the header <threads.h>

Member access operators allow access to the members of their operands. Operator

Defined in header <time.h>