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   1    1  '\" te
   2    2  .\"
   3    3  .\" This file and its contents are supplied under the terms of the
   4    4  .\" Common Development and Distribution License ("CDDL"), version 1.0.
   5    5  .\" You may only use this file in accordance with the terms of version
   6    6  .\" 1.0 of the CDDL.
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   9    9  .\" source.  A copy of the CDDL is also available via the Internet at
  10   10  .\" http://www.illumos.org/license/CDDL.
  11   11  .\"
  12   12  .\"
  13   13  .\" Copyright (c) 2014 Joyent, Inc.  All rights reserved.
  14   14  .\" Copyright 2014 Garrett D'Amore <garrett@damore.org>
  15   15  .\"
  16   16  .TH USELOCALE 3C "Jun 24, 2014"
  17   17  
  18   18  .SH NAME
  19   19  uselocale \- get and set the locale for an individual thread
  20   20  .SH SYNOPSIS
  21   21  .LP
  22   22  .nf
  23   23  #include <locale.h>
  24   24  
  25   25  \fBlocale_t\fR \fBuselocale\fR(\fBlocale_t\fR \fIloc\fR);
  26   26  .fi

  27   27  .SH DESCRIPTION
  28   28  .LP
  29   29  The
  30   30  .B uselocale()
  31   31  function is used to obtain and set the current locale for a thread. When
  32   32  a thread is created, it uses the global locale as specified by calls to
  33   33  .BR setlocale() .
  34   34  .LP
  35   35  If
  36   36  .BR (locale_t) 0
  37      -is supplied for 
       37 +is supplied for
  38   38  .IR loc ,
  39   39  then no change is made to the thread's locale setting.  This can be used
  40   40  to query the thread's locale without making any change.
  41   41  .LP
  42   42  If
  43   43  .B LC_GLOBAL_LOCALE
  44   44  is supplied for
  45   45  .IR loc ,
  46   46  then the thread will use the global locale, undoing the effect of any
  47   47  prior call to establish a thread-specific locale.

  48   48  .LP
  49   49  Otherwise the thread will use the supplied
  50   50  .I loc
  51   51  locale object as a thread-specific locale. Changes to the global
  52   52  locale, or to the locale of any other thread, will not affect this thread.
  53   53  .LP
  54   54  Locale objects for use with
  55   55  .B uselocale()
  56   56  can be created with the functions
  57   57  .BR duplocale (3C)
  58   58  and
  59   59  .BR newlocale (3C).
  60   60  .SH RETURN VALUES
  61   61  Upon successful completion, the
  62   62  .B uselocale()
  63   63  function always returns the previous locale that was set. If no locale
  64   64  was previously set, the global locale,
  65   65  .BR LC_GLOBAL_LOCALE ,
  66   66  is returned. On failure, the
  67   67  .B uselocale()
  68   68  function returns
  69   69  .BR (locale_t) 0,
  70   70  and sets
  71   71  .B errno
  72   72  to indicate the error.
  73   73  .SH ERRORS
  74   74  .TP
  75   75  .B EINVAL
  76   76  An invalid locale was encountered or an internal error occurred that
  77   77  caused the system to be unable to update the locale.
  78   78  .SH ATTRIBUTES
  79   79  .TS
  80   80  box;
  81   81  c | c
  82   82  l | l .
  83   83  ATTRIBUTE TYPE  ATTRIBUTE VALUE
  84   84  _
  85   85  Interface Stability     Standard
  86   86  _
  87   87  MT-Level        MT-Safe
  88   88  .TE
  89   89  
  90   90  .SH SEE ALSO
  91   91  .BR locale (1),
  92   92  .BR duplocale (3C),
  93   93  .BR newlocale (3C),
  94   94  .BR setlocale (3C),
  95   95  .BR locale (5)

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