github.com/afumu/libc@v0.0.6/musl/src/ctype/iswalnum.c (about)

     1  #include <wctype.h>
     2  
     3  int iswalnum(wint_t wc)
     4  {
     5  	return iswdigit(wc) || iswalpha(wc);
     6  }
     7  
     8  int __iswalnum_l(wint_t c, locale_t l)
     9  {
    10  	return iswalnum(c);
    11  }
    12  
    13  weak_alias(__iswalnum_l, iswalnum_l);