Print this page
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
*** 1,163 ****
'\" te
.\" Copyright (c) 1992, X/Open Company Limited. All Rights Reserved. Portions Copyright (c) 2003, Sun Microsystems, Inc. All Rights Reserved.
.\" 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
.\" http://www.opengroup.org/bookstore/.
.\" 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.
.\" This notice shall appear on any product containing this material.
.\" 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.
.\" 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.
.\" 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]
! .TH MBRTOWC 3C "Nov 1, 2003"
.SH NAME
! mbrtowc \- convert a character to a wide-character code (restartable)
.SH SYNOPSIS
.LP
.nf
#include <wchar.h>
\fBsize_t\fR \fBmbrtowc\fR(\fBwchar_t *restrict\fR \fIpwc\fR, \fBconst char *restrict\fR \fIs\fR, \fBsize_t\fR \fIn\fR,
\fBmbstate_t *restrict\fR \fIps\fR);
.fi
.SH DESCRIPTION
- .sp
.LP
! If \fIs\fR is a null pointer, the \fBmbrtowc()\fR function is equivalent to the
! call:
.sp
.in +2
.nf
! mbrtowc(NULL, ``'', 1, ps)
.fi
.in -2
-
- .sp
.LP
! In this case, the values of the arguments \fIpwc\fR and \fIn\fR are ignored.
.sp
.LP
! If \fIs\fR is not a null pointer, the \fBmbrtowc()\fR function inspects at most
! \fIn\fR bytes beginning at the byte pointed to by \fIs\fR to determine the
! number of bytes needed to complete the next character (including any shift
! sequences). If the function determines that the next character is completed,
! it determines the value of the corresponding wide-character and then, if
! \fIpwc\fR is not a null pointer, stores that value in the object pointed to by
! \fIpwc\fR. If the corresponding wide-character is the null wide-character, the
resulting state described is the initial conversion state.
- .sp
.LP
! If \fIps\fR is a null pointer, the \fBmbrtowc()\fR function uses its own
! internal \fBmbstate_t\fR object, which is initialized at program startup to the
! initial conversion state. Otherwise, the \fBmbstate_t\fR object pointed to
! by \fIps\fR is used to completely describe the current conversion state of the
! associated character sequence. Solaris will behave as if no function defined in
! the Solaris Reference Manual calls \fBmbrtowc()\fR.
! .sp
.LP
! The behavior of this function is affected by the \fBLC_CTYPE\fR category of the
! current locale. See \fBenviron\fR(5).
.SH RETURN VALUES
- .sp
.LP
! The \fBmbrtowc()\fR function returns the first of the following that applies:
! .sp
! .ne 2
! .na
! \fB\fB0\fR\fR
! .ad
! .RS 17n
! If the next \fIn\fR or fewer bytes complete the character that corresponds to
the null wide-character (which is the value stored).
! .RE
!
! .sp
! .ne 2
! .na
! \fB\fBpositive\fR\fR
! .ad
! .RS 17n
! If the next \fIn\fR or fewer bytes complete a valid character (which is the
value stored); the value returned is the number of bytes that complete the
character.
! .RE
!
! .sp
! .ne 2
! .na
! \fB\fB(size_t)\(mi2\fR\fR
! .ad
! .RS 17n
! If the next \fIn\fR bytes contribute to an incomplete but potentially valid
! character, and all \fIn\fR bytes have been processed (no value is stored).
! When \fIn\fR has at least the value of the \fBMB_CUR_MAX\fR macro, this case
! can only occur if \fIs\fR points at a sequence of redundant shift sequences
(for implementations with state-dependent encodings).
! .RE
!
! .sp
! .ne 2
! .na
! \fB\fB(size_t)\(mi1\fR\fR
! .ad
! .RS 17n
If an encoding error occurs, in which case the next \fIn\fR or fewer bytes do
not contribute to a complete and valid character (no value is stored). In
! this case, \fBEILSEQ\fR is stored in \fBerrno\fR and the conversion state is
! undefined.
! .RE
!
.SH ERRORS
- .sp
.LP
! The \fBmbrtowc()\fR function may fail if:
! .sp
! .ne 2
! .na
! \fB\fBEINVAL\fR\fR
! .ad
! .RS 10n
! The \fIps\fR argument points to an object that contains an invalid conversion
state.
! .RE
!
! .sp
! .ne 2
! .na
! \fB\fBEILSEQ\fR\fR
! .ad
! .RS 10n
Invalid character sequence is detected.
- .RE
-
.SH ATTRIBUTES
- .sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
- .sp
-
- .sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE ATTRIBUTE VALUE
_
! Interface Stability Standard
_
! MT-Level See NOTES below
.TE
- .SH SEE ALSO
- .sp
.LP
! \fBmbsinit\fR(3C), \fBsetlocale\fR(3C), \fBattributes\fR(5), \fBenviron\fR(5),
! \fBstandards\fR(5)
! .SH NOTES
! .sp
.LP
! If \fIps\fR is not a null pointer, \fBmbrtowc()\fR uses the \fBmbstate_t\fR
! object pointed to by \fIps\fR and the function can be used safely in
! multithreaded applications, as long as \fBsetlocale\fR(3C) is not being called
! to change the locale. If \fIps\fR is a null pointer, \fBmbrtowc()\fR uses its
! internal \fBmbstate_t\fR object and the function is Unsafe in multithreaded
! applications.
--- 1,195 ----
'\" te
+ .\" Copyright 2014 Garrett D'Amore <garrett@damore.org>
.\" Copyright (c) 1992, X/Open Company Limited. All Rights Reserved. Portions Copyright (c) 2003, Sun Microsystems, Inc. All Rights Reserved.
.\" 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
.\" http://www.opengroup.org/bookstore/.
.\" 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.
.\" This notice shall appear on any product containing this material.
.\" 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.
.\" 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.
.\" 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]
! .TH MBRTOWC 3C "Jun 23, 2014"
.SH NAME
! mbrtowc, mbrtowc_l \- convert a character to a wide-character code (restartable)
.SH SYNOPSIS
.LP
.nf
#include <wchar.h>
\fBsize_t\fR \fBmbrtowc\fR(\fBwchar_t *restrict\fR \fIpwc\fR, \fBconst char *restrict\fR \fIs\fR, \fBsize_t\fR \fIn\fR,
\fBmbstate_t *restrict\fR \fIps\fR);
.fi
+ .LP
+ .nf
+ #include <wchar.h>
+ #include <xlocale.h>
+ \fBsize_t\fR \fBmbrtowc_l\fR(\fBwchar_t *restrict\fR \fIpwc\fR, \fBconst char *restrict\fR \fIs\fR, \fBsize_t\fR \fIn\fR,
+ \fBmbstate_t *restrict\fR \fIps\fR, \fBlocale_t\fR \fIloc\fR);
+ .fi
.SH DESCRIPTION
.LP
! If
! .I s
! is a null pointer, the
! .B mbrtowc()
! function is equivalent to the call:
.sp
.in +2
.nf
! \fBmbrtowc\fR(NULL, "", 1, \fIps\fR)
.fi
.in -2
.LP
! Likewise, if
! .I s
! is a null pointer, the
! .B mbrtowc_l()
! function is equivalent to the call:
.sp
+ .in +2
+ .nf
+ \fBmbrtowc_l\fR(NULL, "", 1, \fIps\fR, \fIloc\fR);
+ .fi
+ .in -2
.LP
! In these cases, the values of the arguments
! .I pwc
! and
! .I n
! are ignored.
! .LP
! If
! .I s
! is not a null pointer, these functions inspect at most
! .I n
! bytes beginning at the byte pointed to by
! .I s
! to determine the number of bytes needed to complete the next character
! (including any shift sequences). If the functions determine that the next
! character is completed,
! they determine the value of the corresponding wide-character and then, if
! .I pwc
! is not a null pointer, stores that value in the object pointed to by
! .IR pwc .
! If the corresponding wide-character is the null wide-character, the
resulting state described is the initial conversion state.
.LP
! If
! .I ps
! is a null pointer, these functions use their own
! internal
! .B mbstate_t
! object, which is initialized at program startup to the
! initial conversion state. Otherwise, the
! .B mbstate_t
! object pointed to by
! .I ps
! is used to completely describe the current conversion state of the
! associated character sequence. The system will behave as if no function defined
! in the Reference Manual calls
! .B mbrtowc()
! or
! .BR Bmbrtowc_l() .
.LP
! The behavior of
! .B mbrtowc()
! is affected by the
! .B LC_CTYPE
! category of the current locale. The
! .B mbrtowc_l()
! function is affected by the
! .B LC_CTYPE
! category of the specified
! .I loc
! locale object. See
! .B environ (5).
.SH RETURN VALUES
.LP
! The
! .B mbrtowc()
! and
! .B mbrtowc_l()
! functions return the first of the following that applies:
! .IP \fB0\fR
! If the next
! .I n
! or fewer bytes complete the character that corresponds to
the null wide-character (which is the value stored).
! .IP \fBpositive\fR
! If the next
! .I n
! or fewer bytes complete a valid character (which is the
value stored); the value returned is the number of bytes that complete the
character.
! .IP \fB(size_t)\(mi2\fR
! If the next
! .I n
! bytes contribute to an incomplete but potentially valid
! character, and all
! .I n
! bytes have been processed (no value is stored).
! When
! .I n
! has at least the value of the
! .B MB_CUR_MAX
! macro, this case can only occur if
! .I s
! points at a sequence of redundant shift sequences
(for implementations with state-dependent encodings).
! .IP \fB(size_t)\(mi1\fR
If an encoding error occurs, in which case the next \fIn\fR or fewer bytes do
not contribute to a complete and valid character (no value is stored). In
! this case,
! .B EILSEQ
! is stored in
! .B errno
! and the conversion state is undefined.
.SH ERRORS
.LP
! The
! .B mbrtowc()
! and
! .B mbrtowc_l()
! functions may fail if:
! .IP \fBEINVAL\fR
! The
! .I ps
! argument points to an object that contains an invalid conversion
state.
! .IP \fBEILSEQ\fR
Invalid character sequence is detected.
.SH ATTRIBUTES
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE ATTRIBUTE VALUE
_
! Interface Stability See below.
_
! MT-Level See below.
.TE
.LP
! The
! .B mbrtowc()
! function is Standard. The
! .B mbrtowc_l()
! function is Uncommitted.
.LP
! If
! .I ps
! is a null pointer, these functions are Unsafe for use in
! multithreaded applications. Otherwise they are MT-Safe.
! .SH SEE ALSO
! .LP
! .BR mbsinit (3C),
! .BR newlocale (3C),
! .BR setlocale (3C),
! .BR uselocale (3C),
! .BR attributes (5),
! .BR environ (5),
! .BR standards (5)