NAME
memchr,
memrchr —
locate byte in byte string
LIBRARY
Standard C Library (libc, -lc)
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
The
memchr() 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”).