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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 WCSRTOMBS 3C "Nov 1, 2003"
  11 .SH NAME
  12 wcsrtombs \- convert a wide-character string to a character string
  13 (restartable)
  14 .SH SYNOPSIS
  15 .LP
  16 .nf
  17 #include <wchar.h>
  18 
  19 \fBsize_t\fR \fBwcsrtombs\fR(\fBchar *restrict\fR \fIdst\fR,
  20      \fBconst wchar_t **restrict\fR \fIsrc\fR, \fBsize_t\fR \fIlen\fR,
  21      \fBmbstate_t *restrict\fR \fIps\fR);
  22 .fi




  23 




  24 .SH DESCRIPTION
  25 .sp
  26 .LP
  27 The \fBwcsrtombs()\fR function converts a sequence of wide-characters from the
  28 array indirectly pointed to by \fIsrc\fR into a sequence of corresponding
  29 characters, beginning in the conversion state described by the object pointed
  30 to by \fIps\fR. If \fIdst\fR is not a null pointer, the converted characters
  31 are then stored into the array pointed to by \fIdst\fR. Conversion continues up
  32 to and including a terminating null  wide-character, which is also stored.
  33 Conversion stops earlier in the following cases:
  34 .RS +4
  35 .TP
  36 .ie t \(bu
  37 .el o
  38 When a code is reached that does not correspond to a valid character.
  39 .RE
  40 .RS +4
  41 .TP
  42 .ie t \(bu
  43 .el o
  44 When the next character would exceed the limit of \fIlen\fR total bytes to be
  45 stored in the array pointed to by \fIdst\fR (and \fIdst\fR is not a null
  46 pointer).
  47 .RE
  48 .sp
  49 .LP
  50 Each conversion takes place as if by a call to the \fBwcrtomb()\fR function.
  51 .sp
  52 .LP
  53 If \fIdst\fR is not a null pointer, the pointer object pointed to by \fIsrc\fR
  54 is assigned either a null pointer (if conversion stopped due to reaching a
  55 terminating null wide-character) or the address just  past the last
  56 wide-character converted (if any). If conversion stopped due to reaching a
  57 terminating null wide-character, the resulting state described is the initial
  58 conversion state.
  59 .sp
  60 .LP
  61 If \fIps\fR is a null pointer, the \fBwcsrtombs()\fR function uses its own
  62 internal \fBmbstate_t\fR object, which is initialized at program startup to the
  63 initial conversion state.  Otherwise, the  \fBmbstate_t\fR object pointed to by
  64 \fIps\fR is used to completely describe the current conversion state of the
  65 associated character sequence. Solaris will behave as if no function defined in
  66 the Solaris Reference Manual calls \fBwcsrtombs()\fR.
  67 .sp
  68 .LP
  69 The behavior of this function is affected by the \fBLC_CTYPE\fR category of the
  70 current locale.  See \fBenviron\fR(5).




  71 .SH RETURN VALUES
  72 .sp
  73 .LP
  74 If conversion stops because a code is reached that does not correspond to a
  75 valid character, an encoding error occurs.  In this case, the \fBwcsrtombs()\fR
  76 function stores the value of the macro \fBEILSEQ\fR in \fBerrno\fR and returns
  77 \fB(size_t)\(mi1\fR; the conversion state is undefined.  Otherwise, it returns
  78 the number of bytes in the resulting character sequence, not including the
  79 terminating null (if any).
  80 .SH ERRORS
  81 .sp
  82 .LP
  83 The \fBwcsrtombs()\fR function may fail if:
  84 .sp
  85 .ne 2
  86 .na
  87 \fB\fBEINVAL\fR\fR
  88 .ad
  89 .RS 10n
  90 The \fIps\fR argument points to an object that contains an invalid conversion
  91 state.
  92 .RE
  93 
  94 .sp
  95 .ne 2
  96 .na
  97 \fB\fBEILSEQ\fR\fR
  98 .ad
  99 .RS 10n
 100 A wide-character code does not correspond to a valid character.
 101 .RE
 102 
 103 .SH USAGE
 104 .sp
 105 .LP
 106 If \fIps\fR is not a null pointer, \fBwcsrtombs()\fR uses the \fBmbstate_t\fR
 107 object pointed to by \fIps\fR and the function can be used safely in
 108 multithreaded applications, as long as \fBsetlocale\fR(3C) is not being called
 109 to change the locale. If \fIps\fR is a null pointer, \fBwcsrtombs()\fR uses its
 110 internal \fBmbstate_t\fR object and the function is Unsafe in multithreaded
 111 applications.
 112 .SH ATTRIBUTES
 113 .sp
 114 .LP
 115 See \fBattributes\fR(5) for descriptions of the following attributes:
 116 .sp
 117 
 118 .sp
 119 .TS
 120 box;
 121 c | c
 122 l | l .
 123 ATTRIBUTE TYPE  ATTRIBUTE VALUE
 124 _
 125 Interface Stability     Standard
 126 _
 127 MT-Level        See NOTES below
 128 .TE
 129 






 130 .SH SEE ALSO
 131 .sp
 132 .LP
 133 \fBmbsinit\fR(3C), \fBsetlocale\fR(3C), \fBwcrtomb\fR(3C), \fBattributes\fR(5),

 134 \fBenviron\fR(5), \fBstandards\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 WCSRTOMBS 3C "Jun 25, 2014"
  12 .SH NAME
  13 wcsrtombs, wcsrtombs_l \- convert a wide-character string to a character string
  14 (restartable)
  15 .SH SYNOPSIS
  16 .LP
  17 .nf
  18 #include <wchar.h>
  19 
  20 \fBsize_t\fR \fBwcsrtombs\fR(\fBchar *restrict\fR \fIdst\fR,
  21      \fBconst wchar_t **restrict\fR \fIsrc\fR, \fBsize_t\fR \fIlen\fR,
  22      \fBmbstate_t *restrict\fR \fIps\fR);
  23 .fi
  24 .LP
  25 .nf
  26 #include <wchar.h>
  27 #include <xlocale.h>
  28 
  29 \fBsize_t\fR \fBwcsrtombs_l\fR(\fBchar *restrict\fR \fIdst\fR,
  30      \fBconst wchar_t **restrict\fR \fIsrc\fR, \fBsize_t\fR \fIlen\fR,
  31      \fBmbstate_t *restrict\fR \fIps\fR, \fBlocale_t\fR \fIloc\fR);
  32 .fi
  33 .SH DESCRIPTION

  34 .LP
  35 The \fBwcsrtombs()\fR function converts a sequence of wide-characters from the
  36 array indirectly pointed to by \fIsrc\fR into a sequence of corresponding
  37 characters, beginning in the conversion state described by the object pointed
  38 to by \fIps\fR. If \fIdst\fR is not a null pointer, the converted characters
  39 are then stored into the array pointed to by \fIdst\fR. Conversion continues up
  40 to and including a terminating null  wide-character, which is also stored.
  41 Conversion stops earlier in the following cases:
  42 .RS +4
  43 .TP
  44 .ie t \(bu
  45 .el o
  46 When a code is reached that does not correspond to a valid character.
  47 .RE
  48 .RS +4
  49 .TP
  50 .ie t \(bu
  51 .el o
  52 When the next character would exceed the limit of \fIlen\fR total bytes to be
  53 stored in the array pointed to by \fIdst\fR (and \fIdst\fR is not a null
  54 pointer).
  55 .RE

  56 .LP
  57 Each conversion takes place as if by a call to the \fBwcrtomb()\fR function.

  58 .LP
  59 If \fIdst\fR is not a null pointer, the pointer object pointed to by \fIsrc\fR
  60 is assigned either a null pointer (if conversion stopped due to reaching a
  61 terminating null wide-character) or the address just  past the last
  62 wide-character converted (if any). If conversion stopped due to reaching a
  63 terminating null wide-character, the resulting state described is the initial
  64 conversion state.

  65 .LP
  66 If \fIps\fR is a null pointer, the \fBwcsrtombs()\fR function uses its own
  67 internal \fBmbstate_t\fR object, which is initialized at program startup to the
  68 initial conversion state.  Otherwise, the  \fBmbstate_t\fR object pointed to by
  69 \fIps\fR is used to completely describe the current conversion state of the
  70 associated character sequence. The system will behave as if no function defined
  71 in the Reference Manual calls any of these functions.

  72 .LP
  73 The behavior of \fBwcsrtombs()\fR is affected by the \fBLC_CTYPE\fR category of
  74 the current locale.  See \fBenviron\fR(5).
  75 .LP
  76 The function \fBwcsrtombs_l()\fR behaves identically to \fBwcsrtombs\fR, except
  77 instead of operating in the current locale, it operates in the locale
  78 specified by \fIloc\fR.
  79 .SH RETURN VALUES

  80 .LP
  81 If conversion stops because a code is reached that does not correspond to a
  82 valid character, an encoding error occurs.  In this case, these
  83 functions store the value of the macro \fBEILSEQ\fR in \fBerrno\fR and return
  84 \fB(size_t)\(mi1\fR; the conversion state is undefined.  Otherwise, they return
  85 the number of bytes in the resulting character sequence, not including the
  86 terminating null (if any).
  87 .SH ERRORS

  88 .LP
  89 The \fBwcsrtombs()\fR and \fBwcsrtombs_l()\fR functions may fail if:
  90 .sp
  91 .ne 2
  92 .na
  93 \fB\fBEINVAL\fR\fR
  94 .ad
  95 .RS 10n
  96 The \fIps\fR argument points to an object that contains an invalid conversion
  97 state.
  98 .RE
  99 
 100 .sp
 101 .ne 2
 102 .na
 103 \fB\fBEILSEQ\fR\fR
 104 .ad
 105 .RS 10n
 106 A wide-character code does not correspond to a valid character.
 107 .RE










 108 .SH ATTRIBUTES

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



 111 .TS
 112 box;
 113 c | c
 114 l | l .
 115 ATTRIBUTE TYPE  ATTRIBUTE VALUE
 116 _
 117 Interface Stability     See below.
 118 _
 119 MT-Level        See below.
 120 .TE
 121 
 122 .LP
 123 The \fBwcsrtombs()\fR function is Standard.  The \fBwcsrtombs_l()\fR
 124 function is Uncommitted.
 125 .LP
 126 If \fIps\fR is a null pointer, these functions should be considered Unsafe
 127 for use in multithreaded applications.  Otherwise, they are MT-Safe.
 128 .SH SEE ALSO

 129 .LP
 130 \fBmbsinit\fR(3C), \fBnewlocale\fR(3C), \fBsetlocale\fR(3C), \fBuselocale\fR(3C),
 131 \fBwcrtomb\fR(3C), \fBattributes\fR(5),
 132 \fBenviron\fR(5), \fBstandards\fR(5)