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2964 need POSIX 2008 locale object support
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Approved by: TBD
   1 '\" te

   2 .\" Copyright (c) 1992, X/Open Company Limited. All Rights Reserved.  Portions Copyright (c) 2003, Sun Microsystems, Inc.  All Rights Reserved.
   3 .\" Sun Microsystems, Inc. gratefully acknowledges The Open Group for permission to reproduce portions of its copyrighted documentation. Original documentation from The Open Group can be obtained online at
   4 .\" http://www.opengroup.org/bookstore/.
   5 .\" The Institute of Electrical and Electronics Engineers and The Open Group, have given us permission to reprint portions of their documentation. In the following statement, the phrase "this text" refers to portions of the system documentation. Portions of this text are reprinted and reproduced in electronic form in the Sun OS Reference Manual, from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between these versions and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html.
   6 .\"  This notice shall appear on any product containing this material.
   7 .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
   8 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
   9 .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE.  If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
  10 .TH WCRTOMB 3C "Nov 1, 2003"
  11 .SH NAME
  12 wcrtomb \- convert a wide-character code to a character (restartable)
  13 .SH SYNOPSIS
  14 .LP
  15 .nf
  16 #include <stdio.h>
  17 
  18 \fBsize_t\fR \fBwcrtomb\fR(\fBchar *restrict\fR \fIs\fR, \fBwchar_t\fR \fIwc\fR, \fBmbstate_t *restrict\fR \fIps\fR);
  19 .fi




  20 



  21 .SH DESCRIPTION
  22 .sp
  23 .LP
  24 If \fIs\fR is a null pointer, the \fBwcrtomb()\fR function is equivalent to the
  25 call:
  26 .sp

  27 .LP
  28 wcrtomb(buf, L'\e0', ps)
  29 .sp
  30 .LP
  31 where \fIbuf\fR is an internal buffer.
  32 .sp
  33 .LP
  34 If \fIs\fR is not a null pointer, the \fBwcrtomb()\fR function determines the
  35 number of bytes needed to represent the character that corresponds to the
  36 wide-character given by \fIwc\fR (including any shift sequences), and stores
  37 the resulting bytes in the array whose first element is pointed to by \fIs\fR.
  38 At most \fBMB_CUR_MAX\fR bytes are stored.  If \fIwc\fR is a null
  39 wide-character, a null byte is stored, preceded by any shift sequence needed to
  40 restore the initial shift state. The resulting state described is the initial
  41 conversion state.
  42 .sp
  43 .LP
  44 If \fIps\fR is a null pointer, the \fBwcrtomb()\fR function uses its own
  45 internal \fBmbstate_t\fR object, which is initialized at program startup to the
  46 initial conversion state.   Otherwise, the  \fBmbstate_t\fR object pointed to
  47 by \fIps\fR is used to completely describe the current conversion state of the
  48 associated character sequence. Solaris will behave as if no function defined in
  49 the Solaris Reference Manual calls \fBwcrtomb()\fR.
  50 .sp
  51 .LP
  52 The behavior of this function is affected by the \fBLC_CTYPE\fR category of the
  53 current locale.  See \fBenviron\fR(5).


  54 .SH RETURN VALUES
  55 .sp
  56 .LP
  57 The \fBwcrtomb()\fR function returns the number of bytes stored in the array
  58 object (including any shift sequences).  When \fIwc\fR is not a valid
  59 wide-character, an encoding error occurs.  In this case, the function stores
  60 the value of the macros \fBEILSEQ\fR in \fBerrno\fR and returns
  61 \fB(size_t)\(mi1\fR; the conversion state is undefined.
  62 .SH ERRORS
  63 .sp
  64 .LP
  65 The \fBwcrtomb()\fR function may fail if:
  66 .sp
  67 .ne 2
  68 .na
  69 \fB\fBEINVAL\fR\fR
  70 .ad
  71 .RS 10n
  72 The \fIps\fR argument points to an object that contains an invalid conversion
  73 state.
  74 .RE
  75 
  76 .sp
  77 .ne 2
  78 .na
  79 \fB\fBEILSEQ\fR\fR
  80 .ad
  81 .RS 10n
  82 Invalid wide-character code is detected.
  83 .RE
  84 
  85 .SH USAGE
  86 .sp
  87 .LP
  88 If \fIps\fR is not a null pointer, \fBwcrtomb()\fR uses the \fBmbstate_t\fR
  89 object pointed to by \fIps\fR and the function can be used safely in
  90 multithreaded applications, as long as \fBsetlocale\fR(3C) is not being called
  91 to change the locale. If \fIps\fR is a null pointer, \fBwcrtomb()\fR uses its
  92 internal \fBmbstate_t\fR object and the function is Unsafe in multithreaded
  93 applications.
  94 .SH ATTRIBUTES
  95 .sp
  96 .LP
  97 See \fBattributes\fR(5) for descriptions of the following attributes:
  98 .sp
  99 
 100 .sp
 101 .TS
 102 box;
 103 c | c
 104 l | l .
 105 ATTRIBUTE TYPE  ATTRIBUTE VALUE
 106 _
 107 Interface Stability     Standard
 108 _
 109 MT-Level        See NOTES below
 110 .TE
 111 






 112 .SH SEE ALSO
 113 .sp
 114 .LP
 115 \fBmbsinit\fR(3C), \fBsetlocale\fR(3C), \fBattributes\fR(5),

 116 \fBstandards\fR(5), \fBenviron\fR(5)
   1 '\" te
   2 .\" Copyright 2014 Garrett D'Amore <garrett@damore.org>
   3 .\" Copyright (c) 1992, X/Open Company Limited. All Rights Reserved.  Portions Copyright (c) 2003, Sun Microsystems, Inc.  All Rights Reserved.
   4 .\" Sun Microsystems, Inc. gratefully acknowledges The Open Group for permission to reproduce portions of its copyrighted documentation. Original documentation from The Open Group can be obtained online at
   5 .\" http://www.opengroup.org/bookstore/.
   6 .\" The Institute of Electrical and Electronics Engineers and The Open Group, have given us permission to reprint portions of their documentation. In the following statement, the phrase "this text" refers to portions of the system documentation. Portions of this text are reprinted and reproduced in electronic form in the Sun OS Reference Manual, from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between these versions and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html.
   7 .\"  This notice shall appear on any product containing this material.
   8 .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
   9 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
  10 .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE.  If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
  11 .TH WCRTOMB 3C "Jun 24, 2014"
  12 .SH NAME
  13 wcrtomb, wcrtomb_l \- convert a wide-character code to a character (restartable)
  14 .SH SYNOPSIS
  15 .LP
  16 .nf
  17 #include <stdio.h>
  18 
  19 \fBsize_t\fR \fBwcrtomb\fR(\fBchar *restrict\fR \fIs\fR, \fBwchar_t\fR \fIwc\fR, \fBmbstate_t *restrict\fR \fIps\fR);
  20 .fi
  21 .LP
  22 .nf
  23 #include <stdio.h>
  24 #include <xlocale.h>
  25 
  26 \fBsize_t\fR \fBwcrtomb_l\fR(\fBchar *restrict\fR \fIs\fR, \fBwchar_t\fR \fIwc\fR, \fBmbstate_t *restrict\fR \fIps\fR,
  27     \fBlocale_t\fR \fIloc\fR);
  28 .fi
  29 .SH DESCRIPTION

  30 .LP
  31 If \fIs\fR is a null pointer, the \fBwcrtomb()\fR function is equivalent to the
  32 call:
  33 .IP
  34 \fBwcrtomb\fR(\fIbuf\fR, L'\e0', \fIps\fR);
  35 .LP



  36 where \fIbuf\fR is an internal buffer.

  37 .LP
  38 If \fIs\fR is not a null pointer, the \fBwcrtomb()\fR function determines the
  39 number of bytes needed to represent the character that corresponds to the
  40 wide-character given by \fIwc\fR (including any shift sequences), and stores
  41 the resulting bytes in the array whose first element is pointed to by \fIs\fR.
  42 At most \fBMB_CUR_MAX\fR bytes are stored.  If \fIwc\fR is a null
  43 wide-character, a null byte is stored, preceded by any shift sequence needed to
  44 restore the initial shift state. The resulting state described is the initial
  45 conversion state.

  46 .LP
  47 If \fIps\fR is a null pointer, the \fBwcrtomb()\fR function uses its own
  48 internal \fBmbstate_t\fR object, which is initialized at program startup to the
  49 initial conversion state.   Otherwise, the  \fBmbstate_t\fR object pointed to
  50 by \fIps\fR is used to completely describe the current conversion state of the
  51 associated character sequence. The system will behave as if no function
  52 defined in the Reference Manual calls \fBwcrtomb()\fR.

  53 .LP
  54 The behavior of \fBwcrtomb()\fR is affected by the \fBLC_CTYPE\fR category of the
  55 current locale.  See \fBenviron\fR(5). The function \fBwcrtomb_l()\fR behaves
  56 identically to \fBwcrtomb()\fR, except instead of operating in the current
  57 locale, it operates in the locale specified by \fIloc\fR.
  58 .SH RETURN VALUES

  59 .LP
  60 The \fBwcrtomb()\fR function returns the number of bytes stored in the array
  61 object (including any shift sequences).  When \fIwc\fR is not a valid
  62 wide-character, an encoding error occurs.  In this case, the function stores
  63 the value of the macros \fBEILSEQ\fR in \fBerrno\fR and returns
  64 \fB(size_t)\(mi1\fR; the conversion state is undefined.
  65 .SH ERRORS

  66 .LP
  67 The \fBwcrtomb()\fR function may fail if:
  68 .sp
  69 .ne 2
  70 .na
  71 \fB\fBEINVAL\fR\fR
  72 .ad
  73 .RS 10n
  74 The \fIps\fR argument points to an object that contains an invalid conversion
  75 state.
  76 .RE
  77 
  78 .sp
  79 .ne 2
  80 .na
  81 \fB\fBEILSEQ\fR\fR
  82 .ad
  83 .RS 10n
  84 Invalid wide-character code is detected.
  85 .RE










  86 .SH ATTRIBUTES

  87 .LP
  88 See \fBattributes\fR(5) for descriptions of the following attributes:



  89 .TS
  90 box;
  91 c | c
  92 l | l .
  93 ATTRIBUTE TYPE  ATTRIBUTE VALUE
  94 _
  95 Interface Stability     See below.
  96 _
  97 MT-Level        See below.
  98 .TE
  99 
 100 .LP
 101 The \fBwcrtomb()\fR function is Standard.  The
 102 \fBwcrtomb_l()\fR function is Uncommitted.
 103 .LP
 104 If \fIps\fR is a null pointer, these functions should be considered Unsafe
 105 for use in multithreaded applications.  Otherwise, they are MT-Safe.
 106 .SH SEE ALSO

 107 .LP
 108 \fBmbsinit\fR(3C), \fBnewlocale\fR(3C), \fBsetlocale\fR(3C),
 109 \fBuselocale\fR(3C), \fBattributes\fR(5),
 110 \fBstandards\fR(5), \fBenviron\fR(5)