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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
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--- old/usr/src/man/man3c/mbrtowc.3c
+++ new/usr/src/man/man3c/mbrtowc.3c
1 1 '\" te
2 +.\" Copyright 2014 Garrett D'Amore <garrett@damore.org>
2 3 .\" Copyright (c) 1992, X/Open Company Limited. All Rights Reserved. Portions Copyright (c) 2003, Sun Microsystems, Inc. All Rights Reserved.
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10 -.TH MBRTOWC 3C "Nov 1, 2003"
11 +.TH MBRTOWC 3C "Jun 23, 2014"
11 12 .SH NAME
12 -mbrtowc \- convert a character to a wide-character code (restartable)
13 +mbrtowc, mbrtowc_l \- convert a character to a wide-character code (restartable)
13 14 .SH SYNOPSIS
14 15 .LP
15 16 .nf
16 17 #include <wchar.h>
17 18
18 19 \fBsize_t\fR \fBmbrtowc\fR(\fBwchar_t *restrict\fR \fIpwc\fR, \fBconst char *restrict\fR \fIs\fR, \fBsize_t\fR \fIn\fR,
19 20 \fBmbstate_t *restrict\fR \fIps\fR);
20 21 .fi
22 +.LP
23 +.nf
24 +#include <wchar.h>
25 +#include <xlocale.h>
21 26
27 +\fBsize_t\fR \fBmbrtowc_l\fR(\fBwchar_t *restrict\fR \fIpwc\fR, \fBconst char *restrict\fR \fIs\fR, \fBsize_t\fR \fIn\fR,
28 + \fBmbstate_t *restrict\fR \fIps\fR, \fBlocale_t\fR \fIloc\fR);
29 +.fi
22 30 .SH DESCRIPTION
23 -.sp
24 31 .LP
25 -If \fIs\fR is a null pointer, the \fBmbrtowc()\fR function is equivalent to the
26 -call:
32 +If
33 +.I s
34 +is a null pointer, the
35 +.B mbrtowc()
36 +function is equivalent to the call:
27 37 .sp
28 38 .in +2
29 39 .nf
30 -mbrtowc(NULL, ``'', 1, ps)
40 +\fBmbrtowc\fR(NULL, "", 1, \fIps\fR)
31 41 .fi
32 42 .in -2
33 -
34 -.sp
35 43 .LP
36 -In this case, the values of the arguments \fIpwc\fR and \fIn\fR are ignored.
44 +Likewise, if
45 +.I s
46 +is a null pointer, the
47 +.B mbrtowc_l()
48 +function is equivalent to the call:
37 49 .sp
50 +.in +2
51 +.nf
52 +\fBmbrtowc_l\fR(NULL, "", 1, \fIps\fR, \fIloc\fR);
53 +.fi
54 +.in -2
38 55 .LP
39 -If \fIs\fR is not a null pointer, the \fBmbrtowc()\fR function inspects at most
40 -\fIn\fR bytes beginning at the byte pointed to by \fIs\fR to determine the
41 -number of bytes needed to complete the next character (including any shift
42 -sequences). If the function determines that the next character is completed,
43 -it determines the value of the corresponding wide-character and then, if
44 -\fIpwc\fR is not a null pointer, stores that value in the object pointed to by
45 -\fIpwc\fR. If the corresponding wide-character is the null wide-character, the
56 +In these cases, the values of the arguments
57 +.I pwc
58 +and
59 +.I n
60 +are ignored.
61 +.LP
62 +If
63 +.I s
64 +is not a null pointer, these functions inspect at most
65 +.I n
66 +bytes beginning at the byte pointed to by
67 +.I s
68 +to determine the number of bytes needed to complete the next character
69 +(including any shift sequences). If the functions determine that the next
70 +character is completed,
71 +they determine the value of the corresponding wide-character and then, if
72 +.I pwc
73 +is not a null pointer, stores that value in the object pointed to by
74 +.IR pwc .
75 +If the corresponding wide-character is the null wide-character, the
46 76 resulting state described is the initial conversion state.
47 -.sp
48 77 .LP
49 -If \fIps\fR is a null pointer, the \fBmbrtowc()\fR function uses its own
50 -internal \fBmbstate_t\fR object, which is initialized at program startup to the
51 -initial conversion state. Otherwise, the \fBmbstate_t\fR object pointed to
52 -by \fIps\fR is used to completely describe the current conversion state of the
53 -associated character sequence. Solaris will behave as if no function defined in
54 -the Solaris Reference Manual calls \fBmbrtowc()\fR.
55 -.sp
78 +If
79 +.I ps
80 +is a null pointer, these functions use their own
81 +internal
82 +.B mbstate_t
83 +object, which is initialized at program startup to the
84 +initial conversion state. Otherwise, the
85 +.B mbstate_t
86 +object pointed to by
87 +.I ps
88 +is used to completely describe the current conversion state of the
89 +associated character sequence. The system will behave as if no function defined
90 +in the Reference Manual calls
91 +.B mbrtowc()
92 +or
93 +.BR Bmbrtowc_l() .
56 94 .LP
57 -The behavior of this function is affected by the \fBLC_CTYPE\fR category of the
58 -current locale. See \fBenviron\fR(5).
95 +The behavior of
96 +.B mbrtowc()
97 +is affected by the
98 +.B LC_CTYPE
99 +category of the current locale. The
100 +.B mbrtowc_l()
101 +function is affected by the
102 +.B LC_CTYPE
103 +category of the specified
104 +.I loc
105 +locale object. See
106 +.B environ (5).
59 107 .SH RETURN VALUES
60 -.sp
61 108 .LP
62 -The \fBmbrtowc()\fR function returns the first of the following that applies:
63 -.sp
64 -.ne 2
65 -.na
66 -\fB\fB0\fR\fR
67 -.ad
68 -.RS 17n
69 -If the next \fIn\fR or fewer bytes complete the character that corresponds to
109 +The
110 +.B mbrtowc()
111 +and
112 +.B mbrtowc_l()
113 +functions return the first of the following that applies:
114 +.IP \fB0\fR
115 +If the next
116 +.I n
117 +or fewer bytes complete the character that corresponds to
70 118 the null wide-character (which is the value stored).
71 -.RE
72 -
73 -.sp
74 -.ne 2
75 -.na
76 -\fB\fBpositive\fR\fR
77 -.ad
78 -.RS 17n
79 -If the next \fIn\fR or fewer bytes complete a valid character (which is the
119 +.IP \fBpositive\fR
120 +If the next
121 +.I n
122 +or fewer bytes complete a valid character (which is the
80 123 value stored); the value returned is the number of bytes that complete the
81 124 character.
82 -.RE
83 -
84 -.sp
85 -.ne 2
86 -.na
87 -\fB\fB(size_t)\(mi2\fR\fR
88 -.ad
89 -.RS 17n
90 -If the next \fIn\fR bytes contribute to an incomplete but potentially valid
91 -character, and all \fIn\fR bytes have been processed (no value is stored).
92 -When \fIn\fR has at least the value of the \fBMB_CUR_MAX\fR macro, this case
93 -can only occur if \fIs\fR points at a sequence of redundant shift sequences
125 +.IP \fB(size_t)\(mi2\fR
126 +If the next
127 +.I n
128 +bytes contribute to an incomplete but potentially valid
129 +character, and all
130 +.I n
131 +bytes have been processed (no value is stored).
132 +When
133 +.I n
134 +has at least the value of the
135 +.B MB_CUR_MAX
136 +macro, this case can only occur if
137 +.I s
138 +points at a sequence of redundant shift sequences
94 139 (for implementations with state-dependent encodings).
95 -.RE
96 -
97 -.sp
98 -.ne 2
99 -.na
100 -\fB\fB(size_t)\(mi1\fR\fR
101 -.ad
102 -.RS 17n
140 +.IP \fB(size_t)\(mi1\fR
103 141 If an encoding error occurs, in which case the next \fIn\fR or fewer bytes do
104 142 not contribute to a complete and valid character (no value is stored). In
105 -this case, \fBEILSEQ\fR is stored in \fBerrno\fR and the conversion state is
106 -undefined.
107 -.RE
108 -
143 +this case,
144 +.B EILSEQ
145 +is stored in
146 +.B errno
147 +and the conversion state is undefined.
109 148 .SH ERRORS
110 -.sp
111 149 .LP
112 -The \fBmbrtowc()\fR function may fail if:
113 -.sp
114 -.ne 2
115 -.na
116 -\fB\fBEINVAL\fR\fR
117 -.ad
118 -.RS 10n
119 -The \fIps\fR argument points to an object that contains an invalid conversion
150 +The
151 +.B mbrtowc()
152 +and
153 +.B mbrtowc_l()
154 +functions may fail if:
155 +.IP \fBEINVAL\fR
156 +The
157 +.I ps
158 +argument points to an object that contains an invalid conversion
120 159 state.
121 -.RE
122 -
123 -.sp
124 -.ne 2
125 -.na
126 -\fB\fBEILSEQ\fR\fR
127 -.ad
128 -.RS 10n
160 +.IP \fBEILSEQ\fR
129 161 Invalid character sequence is detected.
130 -.RE
131 -
132 162 .SH ATTRIBUTES
133 -.sp
134 163 .LP
135 164 See \fBattributes\fR(5) for descriptions of the following attributes:
136 -.sp
137 -
138 -.sp
139 165 .TS
140 166 box;
141 167 c | c
142 168 l | l .
143 169 ATTRIBUTE TYPE ATTRIBUTE VALUE
144 170 _
145 -Interface Stability Standard
171 +Interface Stability See below.
146 172 _
147 -MT-Level See NOTES below
173 +MT-Level See below.
148 174 .TE
149 175
150 -.SH SEE ALSO
151 -.sp
152 176 .LP
153 -\fBmbsinit\fR(3C), \fBsetlocale\fR(3C), \fBattributes\fR(5), \fBenviron\fR(5),
154 -\fBstandards\fR(5)
155 -.SH NOTES
156 -.sp
177 +The
178 +.B mbrtowc()
179 +function is Standard. The
180 +.B mbrtowc_l()
181 +function is Uncommitted.
157 182 .LP
158 -If \fIps\fR is not a null pointer, \fBmbrtowc()\fR uses the \fBmbstate_t\fR
159 -object pointed to by \fIps\fR and the function can be used safely in
160 -multithreaded applications, as long as \fBsetlocale\fR(3C) is not being called
161 -to change the locale. If \fIps\fR is a null pointer, \fBmbrtowc()\fR uses its
162 -internal \fBmbstate_t\fR object and the function is Unsafe in multithreaded
163 -applications.
183 +If
184 +.I ps
185 +is a null pointer, these functions are Unsafe for use in
186 +multithreaded applications. Otherwise they are MT-Safe.
187 +.SH SEE ALSO
188 +.LP
189 +.BR mbsinit (3C),
190 +.BR newlocale (3C),
191 +.BR setlocale (3C),
192 +.BR uselocale (3C),
193 +.BR attributes (5),
194 +.BR environ (5),
195 +.BR standards (5)
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