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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/strcasecmp.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
-.\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
-.\" 386BSD man pages
-.\" Modified Sat Jul 24 18:12:45 1993 by Rik Faith (faith@cs.unc.edu)
-.TH strcasecmp 3 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-strcasecmp, strncasecmp \- compare two strings ignoring case
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.B #include <strings.h>
-.P
-.BI "int strcasecmp(const char *" s1 ", const char *" s2 );
-.BI "int strncasecmp(const char " s1 [. n "], const char " s2 [. n "], \
-size_t " n );
-.fi
-.SH DESCRIPTION
-The
-.BR strcasecmp ()
-function performs a byte-by-byte comparison of the strings
-.I s1
-and
-.IR s2 ,
-ignoring the case of the characters.
-It returns an integer
-less than, equal to, or greater than zero if
-.I s1
-is found,
-respectively, to be less than, to match, or be greater than
-.IR s2 .
-.P
-The
-.BR strncasecmp ()
-function is similar, except that it compares
-no more than
-.I n
-bytes of
-.I s1
-and
-.IR s2 .
-.SH RETURN VALUE
-The
-.BR strcasecmp ()
-and
-.BR strncasecmp ()
-functions return
-an integer less than, equal to, or greater than zero if
-.I s1
-is, after ignoring case, found to be
-less than, to match, or be greater than
-.IR s2 ,
-respectively.
-.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 strcasecmp (),
-.BR strncasecmp ()
-T} Thread safety MT-Safe locale
-.TE
-.SH STANDARDS
-POSIX.1-2008.
-.SH HISTORY
-4.4BSD, POSIX.1-2001.
-.P
-The
-.BR strcasecmp ()
-and
-.BR strncasecmp ()
-functions first appeared in 4.4BSD, where they were declared in
-.IR <string.h> .
-Thus, for reasons of historical compatibility, the glibc
-.I <string.h>
-header file also declares these functions, if the
-.B _DEFAULT_SOURCE
-(or, in glibc 2.19 and earlier,
-.BR _BSD_SOURCE )
-feature test macro is defined.
-.P
-The POSIX.1-2008 standard says of these functions:
-.P
-.RS
-When the
-.B LC_CTYPE
-category of the locale being used is from the POSIX locale,
-these functions shall behave as if the strings had been converted
-to lowercase and then a byte comparison performed.
-Otherwise, the results are unspecified.
-.RE
-.SH SEE ALSO
-.BR memcmp (3),
-.BR strcmp (3),
-.BR strcoll (3),
-.BR string (3),
-.BR strncmp (3),
-.BR wcscasecmp (3),
-.BR wcsncasecmp (3)