Chapter 9. Internal Processing and File I/O

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setlocale(LC_ALL, "");

while(1) {

c = getwchar();

if (c == WEOF) break;

putwchar(c);

}

}

I think you can easily imagine a corresponding version using

char

. Since this software does not

do any character manipulation, you can use ordinal

char

for this software.

There are a few points. At first, never forget to call

setlocale()

. Then,

putwchar()

,

getwchar()

,

and

WEOF

are the replacements of

putchar()

,

getchar()

, and

EOF

, respectively. Use

wint_t

instead of

int

for

getwchar()

.

9.2 Character Classification

Here is an example of character clasification using

wchar_t

. At first, this is a non internationalized

version.

/*

*

wc.c

*

*

Word Counter

*

*/

#include 

#include 

int main(int argc, char **argv)

{

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

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

c++;

if (isdigit(n)) d++;

if (strchr(" \t\n", n)) w++;

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

}