When initializing an object of

Defined in header <wchar.h>

Defined in header <wctype.h>

Defined in header <threads.h>

Causes the enclosing for,

Comparison operators are binary operators that test a condition and return 1 if that condition is logically true and 0 if that condition is false

Defined in header <stdlib.h>

The preprocessor is executed at translation phase 4

Defined in header <string.h>

Defined in header <math.h>