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RedHat 9 (Linux i386) - man page for memchr (redhat section 3)

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MEMCHR(3)			    Linux Programmer's Manual				MEMCHR(3)

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 memory 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() func-
       tion is a GNU extension, available since glibc 2.1.91.

SEE ALSO
       index(3), rindex(3), strchr(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3)

GNU					    2002-02-20					MEMCHR(3)
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