MEMCHR(R)           Linux Programmer's Manual           MEMCHR(R)



NAME
       memchr, memrchr - scan memory for a character

SYNOPSIS
       #include <string.h>

       void *memchr(const void *s, int c, size_t n);

       void *memrchr(const void *s, int c, size_t n);

DESCRIPTION
       The  memchr() function scans the first n bytes of the mem-
       ory area pointed to by s for the character c.   The  first
       byte  to  match  c  (interpreted as an unsigned character)
       stops the operation.

       The memrchr() function  is  like  the  memchr()  function,
       except  that  it  searches backwards from the end of the n
       bytes pointed to by s instead of forwards from the  front.

RETURN VALUE
       The  memchr()  and memrchr() functions return a pointer to
       the matching byte or NULL if the character does not  occur
       in the given memory area.

CONFORMING TO
       The  memchr()  function  conforms  to SVID 3, BSD 4.3, ISO
       9899, POSIX.  The memrchr() function is a  GNU  extension,
       available since glibc 2.1.91.

SEE ALSO
       index(x),  rindex(x),  strchr(r),  strpbrk(k), strrchr(r),
       strsep(p), strspn(n), strstr(r)



GNU                         2002-02-20                  MEMCHR(R)