lib/libc/string/strcoll.3 - master - nerfur/openbsd-src

lib/libc/string/strcoll.3
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schwarze
Improve the description of locale dependency:
18 янв 2019, 10:43
18 янв 2019, 10:438fb85c7
.\"	$OpenBSD: strcoll.3,v 1.11 2019/01/18 07:43:36 schwarze Exp $
.\"
.\" Copyright (c) 1990, 1991 The Regents of the University of California.
.\" Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org>
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.\" This code is derived from software contributed to Berkeley by
.\" Chris Torek and the American National Standards Committee X3,
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.Dd $Mdocdate: January 18 2019 $
.Dt STRCOLL 3
.Os
.Sh NAME
.Nm strcoll ,
.Nm strcoll_l
.Nd compare strings according to current collation
.Sh SYNOPSIS
.In string.h
.Ft int
.Fn strcoll "const char *s1" "const char *s2"
.Ft int
.Fn strcoll_l "const char *s1" "const char *s2" "locale_t locale"
.Sh DESCRIPTION
The
.Fn strcoll
and
.Fn strcoll_l
functions lexicographically compare the NUL-terminated strings
.Fa s1
and
.Fa s2
according to the current locale collation
and return an integer greater than, equal to, or less than 0,
according to whether
.Fa s1
is greater than, equal to, or less than
.Fa s2 .
.Pp
On
.Ox ,
they have the same effect as
.Xr strcmp 3 ,
and the global locale, the thread-specific locale, and the
.Fa locale
argument are ignored.
On other operating systems, results may depend on the
.Dv LC_CTYPE
and
.Dv LC_COLLATE
locale categories set with
.Xr setlocale 3 ,
.Xr uselocale 3 ,
or
.Xr newlocale 3 .
.Sh SEE ALSO
.Xr newlocale 3 ,
.Xr setlocale 3 ,
.Xr strcmp 3 ,
.Xr strxfrm 3 ,
.Xr wcscoll 3
.Sh STANDARDS
The
.Fn strcoll
function conforms to
.St -ansiC ,
and
.Fn strcoll_l
to
.St -p1003.1-2008 .
.Sh HISTORY
The
.Fn strcoll
function has been available since
.Bx 4.3 Reno ,
and
.Fn strcoll_l
since
.Ox 6.2 .