source: azure_iot_hub/trunk/musl-1.1.18/src/ctype/iswctype.c@ 388

#include <wctype.h>
#include <string.h>
#include "libc.h"

#define WCTYPE_ALNUM  1
#define WCTYPE_ALPHA  2
#define WCTYPE_BLANK  3
#define WCTYPE_CNTRL  4
#define WCTYPE_DIGIT  5
#define WCTYPE_GRAPH  6
#define WCTYPE_LOWER  7
#define WCTYPE_PRINT  8
#define WCTYPE_PUNCT  9
#define WCTYPE_SPACE  10
#define WCTYPE_UPPER  11
#define WCTYPE_XDIGIT 12

int iswctype(wint_t wc, wctype_t type)
{
        switch (type) {
        case WCTYPE_ALNUM:
                return iswalnum(wc);
        case WCTYPE_ALPHA:
                return iswalpha(wc);
        case WCTYPE_BLANK:
                return iswblank(wc);
        case WCTYPE_CNTRL:
                return iswcntrl(wc);
        case WCTYPE_DIGIT:
                return iswdigit(wc);
        case WCTYPE_GRAPH:
                return iswgraph(wc);
        case WCTYPE_LOWER:
                return iswlower(wc);
        case WCTYPE_PRINT:
                return iswprint(wc);
        case WCTYPE_PUNCT:
                return iswpunct(wc);
        case WCTYPE_SPACE:
                return iswspace(wc);
        case WCTYPE_UPPER:
                return iswupper(wc);
        case WCTYPE_XDIGIT:
                return iswxdigit(wc);
        }
        return 0;
}

wctype_t wctype(const char *s)
{
        int i;
        const char *p;
        /* order must match! */
        static const char names[] =
                "alnum\0" "alpha\0" "blank\0"
                "cntrl\0" "digit\0" "graph\0"
                "lower\0" "print\0" "punct\0"
                "space\0" "upper\0" "xdigit";
        for (i=1, p=names; *p; i++, p+=6)
                if (*s == *p && !strcmp(s, p))
                        return i;
        return 0;
}

int __iswctype_l(wint_t c, wctype_t t, locale_t l)
{
        return iswctype(c, t);
}

wctype_t __wctype_l(const char *s, locale_t l)
{
        return wctype(s);
}

weak_alias(__iswctype_l, iswctype_l);
weak_alias(__wctype_l, wctype_l);