@deftypefn Supplemental char* strchr (const char *@var{s}, int @var{c})
Returns a pointer to the first occurrence of the character @var{c} in
-the string @var{s}, or NULL if not found. If @var{c} is itself the
+the string @var{s}, or @code{NULL} if not found. If @var{c} is itself the
null character, the results are undefined.
@end deftypefn
#include <ansidecl.h>
char *
-strchr (s, c)
- register const char *s;
- int c;
+strchr (register const char *s, int c)
{
do {
if (*s == c)