Character Function Example (Inbuilt)

//Prog:Example of Character Function

#include<ctype.h>
#include<stdio.h>
#include<conio.h>
void main()
{
 int a='*';
 if(isalnum(a))
 { 
  printf("isAlphaNumeric");
 }
 a='a';
 if(isalpha(a))
 { 
  printf("\n isalpha");
 }
 a='9';
 if(isdigit(a))
 { 
  printf("\n isdigit");
 }
 a='a';
 if(islower(a))
 { 
  printf("\n islower");
 }
 a='A';
 if(isupper(a))
 { 
  printf("\n isUpper");
 }
 a='k';
 if(isascii(a))
 { 
  printf("\n isascii");
 }
 a='\n';
 if(isspace(a))
 { 
  printf("\n isspace");
 }
}