kolibrios/programs/develop/libraries/newlib/string/strpbrk.c
Sergey Semyonov (Serge) 2336060a0c newlib: update
git-svn-id: svn://kolibrios.org@1906 a494cfbc-eb01-0410-851d-a64ba20cac60
2011-03-11 18:52:24 +00:00

59 lines
1.0 KiB
C

/*
FUNCTION
<<strpbrk>>---find characters in string
INDEX
strpbrk
ANSI_SYNOPSIS
#include <string.h>
char *strpbrk(const char *<[s1]>, const char *<[s2]>);
TRAD_SYNOPSIS
#include <string.h>
char *strpbrk(<[s1]>, <[s2]>)
char *<[s1]>;
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;
}