1 #include <wctype.h> 2 iswupper(wint_t wc)3 int iswupper(wint_t wc) 4 { 5 return towlower(wc) != wc; 6 } 7 __iswupper_l(wint_t c,locale_t l)8 int __iswupper_l(wint_t c, locale_t l) 9 { 10 return iswupper(c); 11 } 12 13 weak_alias(__iswupper_l, iswupper_l); 14