/* Portable version of strchr()

/* Portable version of strchr()
This function is in the public domain. */

/*

@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 @code{NULL} if not found. If @var{c} is itself the
null character, the results are undefined.

@end deftypefn

*/

#include <ansidecl.h>

char *
strchr (register const char *s, int c)
{
do {
if (*s == c)
{
return (char*)s;
}
} while (*s++);
return (0);
}