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2013-10 2013-09 2013-08

C library function - isxdigit()

September 6, 2013 Posted by: GPA Views: 628 0 comments

Problem

C library function - isxdigit(). Write simple application using this function.

Solution

This function checks if the passed character is a hexadecimal digit (A–F, a–f, 0–9). For using this function you must include <ctype.h> library.

Declaration:

int isxdigit(int value); 

where value is the character to be checked. 

This function returns 1 (true), if input value is a hexadecimal digit character and 0 (false) otherwise.

Example:

 

   

#include <stdio.h>
#include <ctype.h>
int main(int argc, char *argv[])
{
       char value;
        printf("globalproganswer.com\n");
       printf("Enter some value: ");//promt user to enter some value
       scanf("%c",&value);//read from keyboard
        //call function isalnum and show result
        if(isxdigit(value)) {
           printf("This value is hexadecimal character\n");
         } else {
           printf("This value is not hexadecimal character\n");
    }
system("PAUSE");//delay
     return 0;
}

Output

c library function - isxdigit

Download this example

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