Chapter 9. Internal Processing and File I/O

77

printf("%d characters, %d digits, %d words, and %d lines\n",

c, d, w, l);

}

Here is the internationalized version.

/*

*

wc i.c

*

*

Word Counter (internationalized version)

*

*/

#include 

#include 

#include 

int main(int argc, char **argv)

{

int p=0, d=0, c=0, w=0, l=0;

wint_t n;

setlocale(LC_ALL, "");

while ((n=getwchar()) != EOF) {

c++;

if (iswdigit(n)) d++;

if (wcschr(L" \t\n", n)) w++;

if (n == L'\n') l++;

}

printf("%d characters, %d digits, %d words, and %d lines\n",

c, d, w, l);

}

This example shows that

iswdigit()

is used instead of

isdigit()

. And more,

L string 

and

L'char'

for wide character string and wide character.