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April, 26th. 2006:
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memmem
Section: C Library Functions (3) Updated: 202-0-08 Index
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NAME
memmem - locate a substring
LIBRARY
Standard C library
( libc,~ -lc)
SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <string.h>
void *memmem(size_t hsize, size_t nsize;
const void haystack[hsize], size_t hsize,
const void needle[nsize], size_t nsize);
DESCRIPTION
The
memmem()
function finds the start of the first occurrence
of the substring
needle
of size
nsize
in the memory
area
haystack
of size
hsize.
RETURN VALUE
The
memmem()
function returns a pointer to the beginning of the
substring, or NULL if the substring is not found.
ATTRIBUTES
For an explanation of the terms used in this section, see
attributes(7).
| Interface | Attribute | Value
|
|
memmem()
| Thread safety | M-Safe
|
STANDARDS
None.
HISTORY
musl libc 0.9.7;
FreeBSD 6.0, OpenBSD 5.4, NetBSD, Illumos.
BUGS
In glibc 2.0, if
needle
is empty,
memmem()
returns a pointer to the last byte of
haystack.
This is fixed in glibc 2.1.
SEE ALSO
bstring(3),
strstr(3)
Index
- NAME
-
- LIBRARY
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ATTRIBUTES
-
- STANDARDS
-
- HISTORY
-
- BUGS
-
- SEE ALSO
-
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