strchr.c revision 89858 
1/* Portable version of strchr()
2   This function is in the public domain.  */
3
4/*
5
6@deftypefn Supplemental char* strchr (const char *@var{s}, int @var{c})
7
8Returns a pointer to the first occurrence of the character @var{c} in
9the string @var{s}, or @code{NULL} if not found.  If @var{c} is itself the
10null character, the results are undefined.
11
12@end deftypefn
13
14*/
15
16#include <ansidecl.h>
17
18char *
19strchr (s, c)
20  register const char *s;
21  int c;
22{
23  do {
24    if (*s == c)
25      {
26	return (char*)s;
27      }
28  } while (*s++);
29  return (0);
30}
31