memrchr(3) -- Linux man page
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()
function 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),
wmemchr(3)
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