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 (inter‐
preted 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 SVr4, 4.3BSD, C99. The memrchr()
function is a GNU extension, available since glibc 2.1.91.
SEE ALSOindex(3), rindex(3), strchr(3), strpbrk(3), strrchr(3), strsep(3), str‐
spn(3), strstr(3), wmemchr(3)
2003-11-01 MEMCHR(3)
