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--- old/usr/src/man/man3c/mbtowc.3c
+++ new/usr/src/man/man3c/mbtowc.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) 2002, Sun Microsystems, Inc. All Rights Reserved.
3 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
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10 11 .TH MBTOWC 3C "Jun 23, 2014"
11 12 .SH NAME
12 13 mbtowc, mbtowc_l \- convert a character to a wide-character code
13 14 .SH SYNOPSIS
14 15 .LP
15 16 .nf
16 17 #include <stdlib.h>
17 18
18 19 \fBint\fR \fBmbtowc\fR(\fBwchar_t *restrict\fR \fIpwc\fR, \fBconst char *restrict\fR \fIs\fR, \fBsize_t\fR \fIn\fR);
19 20 .fi
20 21 .LP
21 22 .nf
22 23 #include <stdlib.h>
23 24 #include <xlocale.h>
24 25
25 26 \fBint\fR \fBmbtowc_l\fR(\fBwchar_t *restrict\fR \fIpwc\fR, \fBconst char *restrict\fR \fIs\fR, \fBsize_t\fR \fIn\fR,
26 27 \fBlocale_t\fR \fIloc\fR);
27 28 .fi
28 29 .SH DESCRIPTION
29 30 .LP
30 31 If \fIs\fR is not a null pointer, \fBmbtowc()\fR determines the number of the
31 32 bytes that constitute the character pointed to by \fIs\fR. It then determines
32 33 the wide-character code for the value of type \fBwchar_t\fR that corresponds to
33 34 that character. (The value of the wide-character code corresponding to the null
34 35 byte is 0.) If the character is valid and \fIpwc\fR is not a null pointer,
35 36 \fBmbtowc()\fR stores the wide-character code in the object pointed to by
36 37 \fIpwc\fR.
37 38 .LP
38 39 A call with \fIs\fR as a null pointer causes this function to return \fB0\fR.
39 40 The behavior of this function is affected by the \fBLC_CTYPE\fR category of the
40 41 current locale. At most \fIn\fR bytes of the array pointed to by \fIs\fR will
41 42 be examined.
42 43 .LP
43 44 The function \fBmbtowc_l()\fR behaves identically to \fBmbtowc()\fR, except
44 45 instead of using the current locale, it uses the locale as specified by
45 46 \fIloc\fR.
46 47 .SH RETURN VALUES
47 48 .LP
48 49 If \fIs\fR is a null pointer, these functions return \fB0\fR. If \fIs\fR is not
49 50 a null pointer, they return \fB0\fR (if \fIs\fR points to the null
50 51 byte), the number of bytes that constitute the converted character (if the next
51 52 \fIn\fR or fewer bytes form a valid character), or \fB\(mi1\fR and may set
52 53 \fBerrno\fR to indicate the error (if they do not form a valid character).
53 54 .LP
54 55 In no case will the value returned be greater than \fIn\fR or the value of the
55 56 \fBMB_CUR_MAX\fR macro.
56 57 .SH ERRORS
57 58 .LP
58 59 The \fBmbtowc()\fR and \fBmbtowc_l()\fR functions may fail if:
59 60 .sp
60 61 .ne 2
61 62 .na
62 63 \fB\fBEILSEQ\fR\fR
63 64 .ad
64 65 .RS 10n
65 66 Invalid character sequence is detected.
66 67 .RE
67 68 .SH ATTRIBUTES
68 69 .LP
69 70 See \fBattributes\fR(5) for descriptions of the following attributes:
70 71 .TS
71 72 box;
72 73 c | c
73 74 l | l .
74 75 ATTRIBUTE TYPE ATTRIBUTE VALUE
75 76 _
76 77 CSI Enabled
77 78 _
78 79 Interface Stability See below.
79 80 _
80 81 MT-Level MT-Safe
81 82 .TE
82 83
83 84 .LP
84 85 The
85 86 .B mbtowc()
86 87 function is Standard. The
87 88 .B mbtowc_l()
88 89 function is Uncommitted.
89 90 .SH SEE ALSO
90 91 .LP
91 92 \fBmblen\fR(3C), \fBmbstowcs\fR(3C),
92 93 \fBnewlocale\fR(3C), \fBsetlocale\fR(3C), \fBuselocale\fR(3C),
93 94 \fBwcstombs\fR(3C), \fBwctomb\fR(3C), \fBattributes\fR(5), \fBstandards\fR(5)
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