mbsrtowcs.3 (8b8109275c1a583e96171df08e3136151c02279e) mbsrtowcs.3 (1949a3470f29c5edaa5fc2770c2886d653fa68d1)
1.\" Copyright (c) 2002-2004 Tim J. Robbins
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.

--- 9 unchanged lines hidden (view full) ---

18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23.\" SUCH DAMAGE.
24.\"
25.\" $FreeBSD$
1.\" Copyright (c) 2002-2004 Tim J. Robbins
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.

--- 9 unchanged lines hidden (view full) ---

18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23.\" SUCH DAMAGE.
24.\"
25.\" $FreeBSD$
26.Dd April 8, 2004
26.Dd July 21, 2004
27.Dt MBSRTOWCS 3
28.Os
29.Sh NAME
27.Dt MBSRTOWCS 3
28.Os
29.Sh NAME
30.Nm mbsrtowcs
30.Nm mbsrtowcs ,
31.Nm mbsnrtowcs
31.Nd "convert a character string to a wide-character string (restartable)"
32.Sh LIBRARY
33.Lb libc
34.Sh SYNOPSIS
35.In wchar.h
36.Ft size_t
37.Fo mbsrtowcs
38.Fa "wchar_t * restrict dst" "const char ** restrict src" "size_t len"
39.Fa "mbstate_t * restrict ps"
40.Fc
32.Nd "convert a character string to a wide-character string (restartable)"
33.Sh LIBRARY
34.Lb libc
35.Sh SYNOPSIS
36.In wchar.h
37.Ft size_t
38.Fo mbsrtowcs
39.Fa "wchar_t * restrict dst" "const char ** restrict src" "size_t len"
40.Fa "mbstate_t * restrict ps"
41.Fc
42.Ft size_t
43.Fo mbsnrtowcs
44.Fa "wchar_t * restrict dst" "const char ** restrict src" "size_t nms"
45.Fa "size_t len" "mbstate_t * restrict ps"
46.Fc
41.Sh DESCRIPTION
42The
43.Fn mbsrtowcs
44function converts a sequence of multibyte characters pointed to indirectly by
45.Fa src
46into a sequence of corresponding wide characters and stores at most
47.Fa len
48of them in the

--- 28 unchanged lines hidden (view full) ---

77is used to keep track of the shift state.
78If it is
79.Dv NULL ,
80.Fn mbsrtowcs
81uses an internal, static
82.Vt mbstate_t
83object, which is initialized to the initial conversion state
84at program startup.
47.Sh DESCRIPTION
48The
49.Fn mbsrtowcs
50function converts a sequence of multibyte characters pointed to indirectly by
51.Fa src
52into a sequence of corresponding wide characters and stores at most
53.Fa len
54of them in the

--- 28 unchanged lines hidden (view full) ---

83is used to keep track of the shift state.
84If it is
85.Dv NULL ,
86.Fn mbsrtowcs
87uses an internal, static
88.Vt mbstate_t
89object, which is initialized to the initial conversion state
90at program startup.
91.Pp
92The
93.Fn mbsnrtowcs
94function behaves identically to
95.Fn mbsrtowcs ,
96except that conversion stops after reading at most
97.Fa nms
98bytes from the buffer pointed to by
99.Fa src .
85.Sh RETURN VALUES
86The
87.Fn mbsrtowcs
100.Sh RETURN VALUES
101The
102.Fn mbsrtowcs
88function returns the number of wide characters stored in
103and
104.Fn mbsnrtowcs
105functions return the number of wide characters stored in
89the array pointed to by
90.Fa dst
91if successful, otherwise it returns
92.Po Vt size_t Pc Ns \-1 .
93.Sh ERRORS
94The
95.Fn mbsrtowcs
106the array pointed to by
107.Fa dst
108if successful, otherwise it returns
109.Po Vt size_t Pc Ns \-1 .
110.Sh ERRORS
111The
112.Fn mbsrtowcs
96function will fail if:
113and
114.Fn mbsnrtowcs
115functions will fail if:
97.Bl -tag -width Er
98.It Bq Er EILSEQ
99An invalid multibyte character sequence was encountered.
100.It Bq Er EINVAL
101The conversion state is invalid.
102.El
103.Sh SEE ALSO
104.Xr mbrtowc 3 ,
105.Xr mbstowcs 3 ,
106.Xr multibyte 3 ,
107.Xr wcsrtombs 3
108.Sh STANDARDS
109The
110.Fn mbsrtowcs
111function conforms to
112.St -isoC-99 .
116.Bl -tag -width Er
117.It Bq Er EILSEQ
118An invalid multibyte character sequence was encountered.
119.It Bq Er EINVAL
120The conversion state is invalid.
121.El
122.Sh SEE ALSO
123.Xr mbrtowc 3 ,
124.Xr mbstowcs 3 ,
125.Xr multibyte 3 ,
126.Xr wcsrtombs 3
127.Sh STANDARDS
128The
129.Fn mbsrtowcs
130function conforms to
131.St -isoC-99 .
132.Pp
133The
134.Fn mbsnrtowcs
135function is an extension to the standard.