islower.c File Reference

#include "../ctype.h"

Functions
int	islower (int c)
	Check if value is lower alphanumeric. More...

Function Documentation

islower()

int islower

(

int

c

)

Check if value is lower alphanumeric.

The islower function tests for any character that is a lowercase letter or is one of a locale-specific set of characters for which none of iscntrl, isdigit, ispunct, or isspace is true. In the "C" locale, islower returns true only for the lowercase letters.

Parameters

c	Value to check.

Returns

1 if true, 0 if false