islower Function

It test the given character, whether it is a lower case character(a to z) or not.

It returns nonzero if ch is a lowercase letter; otherwise zero is returned.

Syntax :

int islower(int ch);

Example


#include <ctype.h>

#include <stdio.h>

  void main() {

	char ch='a';

	if(islower(ch)) {

		printf("%c is  lowercase\n", ch);

	}

}

Output