#include  <string.h>

#include  <locale.h>

#include  <stdlib.h>



/* 

 * The following example uses the wcwidth subroutine to find

 * the display column width of a wide character.

 */



int main(int argc, char **argv) {

    wint_t  wc;

    int     retval;

 

    setlocale(LC_ALL,  "");

 

    /*

     * Let wc be the wide character whose display width is

     * to be found.

     */

    retval  =  wcwidth(wc);

    

    if (retval == -1){

        /*

         * Error handling. Invalid or nonprintable

         * wide character in wc.

         */

    }

    

    return (0);

}