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/*
FUNCTION
<<strpbrk>>---find characters in string
INDEX
strpbrk
SYNOPSIS
#include <string.h>
char *strpbrk(const char *<[s1]>, const char *<[s2]>);
DESCRIPTION
This function locates the first occurence in the string
pointed to by <[s1]> of any character in string pointed to by
<[s2]> (excluding the terminating null character).
RETURNS
<<strpbrk>> returns a pointer to the character found in <[s1]>, or a
null pointer if no character from <[s2]> occurs in <[s1]>.
PORTABILITY
<<strpbrk>> requires no supporting OS subroutines.
*/
#include <string.h>
char *
_DEFUN (strpbrk, (s1, s2),
_CONST char *s1 _AND
_CONST char *s2)
{
_CONST char *c = s2;
if (!*s1)
return (char *) NULL;
while (*s1)
{
for (c = s2; *c; c++)
{
if (*s1 == *c)
break;
}
if (*c)
break;
s1++;
}
if (*c == '\0')
s1 = NULL;
return (char *) s1;
}
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