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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-24 04:52:22 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-24 04:52:22 +0000 |
commit | 3d08cd331c1adcf0d917392f7e527b3f00511748 (patch) | |
tree | 312f0d1e1632f48862f044b8bb87e602dcffb5f9 /man/man3/lsearch.3 | |
parent | Adding debian version 6.7-2. (diff) | |
download | manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.tar.xz manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.zip |
Merging upstream version 6.8.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man/man3/lsearch.3')
-rw-r--r-- | man/man3/lsearch.3 | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/man/man3/lsearch.3 b/man/man3/lsearch.3 new file mode 100644 index 0000000..ea25d5f --- /dev/null +++ b/man/man3/lsearch.3 @@ -0,0 +1,94 @@ +'\" t +.\" Copyright 1995 Jim Van Zandt <jrv@vanzandt.mv.com> +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.\" Corrected prototype and include, aeb, 990927 +.TH lsearch 3 2024-05-02 "Linux man-pages (unreleased)" +.SH NAME +lfind, lsearch \- linear search of an array +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.B #include <search.h> +.P +.BI "void *lfind(const void " key [. size "], \ +const void " base [. size " * ." nmemb ], +.BI " size_t *" nmemb ", size_t " size , +.BI " int(*" compar ")(const void [." size "], \ +const void [." size ])); +.BI "void *lsearch(const void " key [. size "], \ +void " base [. size " * ." nmemb ], +.BI " size_t *" nmemb ", size_t " size , +.BI " int(*" compar ")(const void [." size "], \ +const void [." size ])); +.fi +.SH DESCRIPTION +.BR lfind () +and +.BR lsearch () +perform a linear search for +.I key +in the array +.I base +which has +.I *nmemb +elements of +.I size +bytes each. +The comparison function referenced by +.I compar +is expected to have two arguments which point to the +.I key +object and to an array member, in that order, and which +returns zero if the +.I key +object matches the array member, and +nonzero otherwise. +.P +If +.BR lsearch () +does not find a matching element, then the +.I key +object is inserted at the end of the table, and +.I *nmemb +is +incremented. +In particular, one should know that a matching element +exists, or that more room is available. +.SH RETURN VALUE +.BR lfind () +returns a pointer to a matching member of the array, or +NULL if no match is found. +.BR lsearch () +returns a pointer to +a matching member of the array, or to the newly added member if no +match is 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 lfind (), +.BR lsearch () +T} Thread safety MT-Safe +.TE +.SH STANDARDS +POSIX.1-2008. +.SH HISTORY +POSIX.1-2001, SVr4, 4.3BSD. +libc-4.6.27. +.SH BUGS +The naming is unfortunate. +.SH SEE ALSO +.BR bsearch (3), +.BR hsearch (3), +.BR tsearch (3) |