C库函数 wctomb()

#include <stdio.h>

#include <stdlib.h>



int main () {

   int i;

   wchar_t wc = L'a';

   char *pmbnull = NULL;

   char *pmb = (char *)malloc(sizeof( char ));



   printf("Converting wide character:\n");

   i = wctomb( pmb, wc );

   printf("Characters converted: %u\n", i);

   printf("Multibyte character: %.1s\n", pmb);



   printf("Trying to convert when target is NULL:\n");

   i = wctomb( pmbnull, wc );

   printf("Characters converted: %u\n", i);



   /* this will not print any value */

   printf("Multibyte character: %.1s\n", pmbnull);



   return(0);

}