libiberty/strchr.c

   1 /* Portable version of strchr()
   2    This function is in the public domain.  */
   3
   4 /*
   5 NAME
   6         strchr -- return pointer to first occurance of a character
   7
   8 SYNOPSIS
   9         char *strchr (const char *s, int c)
  10
  11 DESCRIPTION
  12         Returns a pointer to the first occurance of character C in
  13         string S, or a NULL pointer if no occurance is found.
  14
  15 BUGS
  16         Behavior when character is the null character is implementation
  17         dependent.
  18 */
  19
  20 #include <ansidecl.h>
  21
  22 char *
  23 strchr (s, c)
  24   register CONST char *s;
  25   int c;
  26 {
  27   do {
  28     if (*s == c)
  29       {
  30         return (char*)s;
  31       }
  32   } while (*s++);
  33   return (0);
  34 }