src/ctype/isdigit.c

   1 #include <ctype.h>
   2 #undef isdigit
   3
   4 int isdigit(int c)
   5 {
   6         return (unsigned)c-'0' < 10;
   7 }
   8
   9 int __isdigit_l(int c, locale_t l)
  10 {
  11         return isdigit(c);
  12 }
  13
  14 weak_alias(__isdigit_l, isdigit_l);