1MBSINIT(3P)                POSIX Programmer's Manual               MBSINIT(3P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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NAME

13       mbsinit — determine conversion object status
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SYNOPSIS

16       #include <wchar.h>
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18       int mbsinit(const mbstate_t *ps);
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DESCRIPTION

21       The functionality described on this reference page is aligned with  the
22       ISO C  standard.  Any  conflict between the requirements described here
23       and the ISO C standard is unintentional. This  volume  of  POSIX.1‐2008
24       defers to the ISO C standard.
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26       If  ps  is  not  a null pointer, the mbsinit() function shall determine
27       whether the object pointed to by ps  describes  an  initial  conversion
28       state.
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RETURN VALUE

31       The  mbsinit()  function shall return non-zero if ps is a null pointer,
32       or if the pointed-to object describes an initial conversion state; oth‐
33       erwise, it shall return zero.
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35       If  an mbstate_t object is altered by any of the functions described as
36       ``restartable'', and is then used with a different character  sequence,
37       or in the other conversion direction, or with a different LC_CTYPE cat‐
38       egory setting than on earlier function calls,  the  behavior  is  unde‐
39       fined.
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ERRORS

42       No errors are defined.
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44       The following sections are informative.
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EXAMPLES

47       None.
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APPLICATION USAGE

50       The  mbstate_t  object is used to describe the current conversion state
51       from a particular character sequence to a wide-character  sequence  (or
52       vice  versa)  under  the  rules of a particular setting of the LC_CTYPE
53       category of the current locale.
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55       The initial conversion state corresponds, for a  conversion  in  either
56       direction,  to the beginning of a new character sequence in the initial
57       shift state. A zero valued mbstate_t object is  at  least  one  way  to
58       describe  an  initial  conversion state. A zero valued mbstate_t object
59       can be used to initiate conversion involving any character sequence, in
60       any LC_CTYPE category setting.
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RATIONALE

63       None.
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FUTURE DIRECTIONS

66       None.
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SEE ALSO

69       mbrlen(), mbrtowc(), mbsrtowcs(), wcrtomb(), wcsrtombs()
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71       The Base Definitions volume of POSIX.1‐2008, <wchar.h>
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74       Portions  of  this text are reprinted and reproduced in electronic form
75       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
76       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
77       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
78       cal  and  Electronics  Engineers,  Inc  and  The  Open Group.  (This is
79       POSIX.1-2008 with the 2013 Technical Corrigendum  1  applied.)  In  the
80       event of any discrepancy between this version and the original IEEE and
81       The Open Group Standard, the original IEEE and The Open Group  Standard
82       is  the  referee document. The original Standard can be obtained online
83       at http://www.unix.org/online.html .
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85       Any typographical or formatting errors that appear  in  this  page  are
86       most likely to have been introduced during the conversion of the source
87       files to man page format. To report such errors,  see  https://www.ker‐
88       nel.org/doc/man-pages/reporting_bugs.html .
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92IEEE/The Open Group                  2013                          MBSINIT(3P)
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