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| author | Alejandro Colomar <alx.manpages@gmail.com> | 2022-09-05 23:03:38 +0200 |
|---|---|---|
| committer | Alejandro Colomar <alx.manpages@gmail.com> | 2022-09-05 23:03:47 +0200 |
| commit | 70ac1c4785fc1e158ab2349a962dba2526bf4fbc (patch) | |
| tree | bff270e2496dd284bccfc1271b43946f5d225224 /man/man3/memmem.3 | |
| parent | 5423a6f86b2b920a5f3e8cf8d759b513050f2d33 (diff) | |
| download | man-pages-70ac1c4785fc1e158ab2349a962dba2526bf4fbc.tar.gz | |
src.mk, All pages: Move man* to man/
The root of the repository is becoming a bit overpopulated and
unorganized, due to the recent addition of more mandirs, and more
informative and configuration files too. Let's create a specific
mandir <man/> that contains the mandirs <man[1-8]*>.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Diffstat (limited to 'man/man3/memmem.3')
| -rw-r--r-- | man/man3/memmem.3 | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/man/man3/memmem.3 b/man/man3/memmem.3 new file mode 100644 index 0000000000..e1c642072f --- /dev/null +++ b/man/man3/memmem.3 @@ -0,0 +1,89 @@ +.\" 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 2021-03-22 "Linux man-pages (unreleased)" +.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> +.PP +.BI "void *memmem(const void *" haystack ", size_t " haystacklen , +.BI " const void *" needle ", 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). +.ad l +.nh +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.BR memmem () +T} Thread safety MT-Safe +.TE +.hy +.ad +.sp 1 +.SH STANDARDS +This function is not specified in POSIX.1, +but is present on a number of other systems. +.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) |