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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)

       memchr, memrchr - scan memory for a character

       #include <string.h>

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

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

       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

       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.

       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.

       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.

       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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