fix pthread_cleanup_pop(1) crash in non-thread-capable, static-linked programs

[musl] / src / ctype / iswxdigit.c

#include <wchar.h>
#include <wctype.h>

int iswxdigit(wint_t wc)
{
        return (unsigned)(wc-'0') < 10 || (unsigned)((wc|32)-'a') < 6;
}