NAME
memchr, memrchr
— locate byte in byte
string
LIBRARY
library “libc”
SYNOPSIS
#include
<string.h>
void *
memchr(const
void *b, int c,
size_t len);
void *
memrchr(const
void *b, int c,
size_t len);
DESCRIPTION
Thememchr()
function locates the first occurrence of c (converted to
an unsigned char) in string b. The
memrchr()
function locates the last occurrence of c (converted to
an unsigned char) in string b.
RETURN VALUES
The memchr() and
memrchr() functions return a pointer to the byte
located, or NULL if no such byte exists within
len bytes.
SEE ALSO
index(3), rindex(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3)
STANDARDS
The memchr() function conforms to
ANSI X3.159-1989
(“ANSI C89”).