src/ctype/isalpha.c

   1 #include <ctype.h>
   2 #include "libc.h"
   3 #undef isalpha
   4
   5 int isalpha(int c)
   6 {
   7         return ((unsigned)c|32)-'a' < 26;
   8 }
   9
  10 int __isalpha_l(int c, locale_t l)
  11 {
  12         return isalpha(c);
  13 }
  14
  15 weak_alias(__isalpha_l, isalpha_l);