1 #include <wctype.h> 2 iswalnum(wint_t wc)3 int iswalnum(wint_t wc) 4 { 5 return iswdigit(wc) || iswalpha(wc); 6 } 7 __iswalnum_l(wint_t c,locale_t l)8 int __iswalnum_l(wint_t c, locale_t l) 9 { 10 return iswalnum(c); 11 } 12 13 weak_alias(__iswalnum_l, iswalnum_l); 14