isupper Function

t test the given character, whether it is an upper case character (A to Z)

It returns nonzero if ch is an uppercase letter; otherwise zero is returned.

Syntax :

int isupper(int ch);

Example

#include <ctype.h>

#include <stdio.h>

  void main() {

	char ch='A';

	if(isupper(ch)) {

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

	}

}

Output

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Change the example accordingly and find out the outputs for differnet datatypes !!
#include <ctype.h> #include <stdio.h> void main() { char ch='A'; if(isupper(ch)) { printf("%c is uppercase\n", ch); } }

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