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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-24 04:52:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-24 04:52:22 +0000
commit3d08cd331c1adcf0d917392f7e527b3f00511748 (patch)
tree312f0d1e1632f48862f044b8bb87e602dcffb5f9 /man3/memmem.3
parentAdding debian version 6.7-2. (diff)
downloadmanpages-3d08cd331c1adcf0d917392f7e527b3f00511748.tar.xz
manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.zip
Merging upstream version 6.8.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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-'\" t
-.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.\" References consulted:
-.\" Linux libc source code
-.\" 386BSD man pages
-.\" Modified Sat Jul 24 18:50:48 1993 by Rik Faith (faith@cs.unc.edu)
-.\" Interchanged 'needle' and 'haystack'; added history, aeb, 980113.
-.TH memmem 3 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-memmem \- locate a substring
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.BR "#define _GNU_SOURCE" " /* See feature_test_macros(7) */"
-.B #include <string.h>
-.P
-.BI "void *memmem(const void " haystack [. haystacklen "], size_t " haystacklen ,
-.BI " const void " needle [. needlelen "], size_t " needlelen );
-.fi
-.SH DESCRIPTION
-The
-.BR memmem ()
-function finds the start of the first occurrence
-of the substring
-.I needle
-of length
-.I needlelen
-in the memory
-area
-.I haystack
-of length
-.IR haystacklen .
-.SH RETURN VALUE
-The
-.BR memmem ()
-function returns a pointer to the beginning of the
-substring, or NULL if the substring is not found.
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface Attribute Value
-T{
-.na
-.nh
-.BR memmem ()
-T} Thread safety MT-Safe
-.TE
-.SH STANDARDS
-None.
-.SH HISTORY
-musl libc 0.9.7;
-FreeBSD 6.0, OpenBSD 5.4, NetBSD, Illumos.
-.SH BUGS
-.\" This function was broken in Linux libraries up to and including libc 5.0.9;
-.\" there the
-.\" .IR needle
-.\" and
-.\" .I haystack
-.\" arguments were interchanged,
-.\" and a pointer to the end of the first occurrence of
-.\" .I needle
-.\" was returned.
-.\"
-.\" Both old and new libc's have the bug that if
-.\" .I needle
-.\" is empty,
-.\" .I haystack\-1
-.\" (instead of
-.\" .IR haystack )
-.\" is returned.
-In glibc 2.0, if
-.I needle
-is empty,
-.BR memmem ()
-returns a pointer to the last byte of
-.IR haystack .
-This is fixed in glibc 2.1.
-.SH SEE ALSO
-.BR bstring (3),
-.BR strstr (3)