1mbsinit(3C) Standard C Library Functions mbsinit(3C)
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6 mbsinit - determine conversion object status
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9 #include <wchar.h>
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11 int mbsinit(const mbstate_t *ps);
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15 If ps is not a null pointer, the mbsinit() function determines whether
16 the object pointed to by ps describes an initial conversion state.
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19 The mbsinit() function returns non-zero if ps is a null pointer, or if
20 the pointed-to object describes an initial conversion state; otherwise,
21 it returns 0.
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24 If an mbstate_t object is altered by any of the functions described as
25 "restartable", and is then used with a different character sequence, or
26 in the other conversion direction, or with a different LC_CTYPE cate‐
27 gory setting than on earlier function calls, the behavior is undefined.
28 See environ(5).
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31 No errors are defined.
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34 The mbstate_t object is used to describe the current conversion state
35 from a particular character sequence to a wide-character sequence (or
36 vice versa) under the rules of a particular setting of the LC_CTYPE
37 category of the current locale.
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40 The initial conversion state corresponds, for a conversion in either
41 direction, to the beginning of a new character sequence in the initial
42 shift state. A zero-valued mbstate_t object is at least one way to
43 describe an initial conversion state. A zero-valued mbstate_t object
44 can be used to initiate conversion involving any character sequence, in
45 any LC_CTYPE category setting.
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48 See attributes(5) for descriptions of the following attributes:
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53 ┌─────────────────────────────┬─────────────────────────────┐
54 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
55 ├─────────────────────────────┼─────────────────────────────┤
56 │Interface Stability │Standard │
57 ├─────────────────────────────┼─────────────────────────────┤
58 │MT-Level │MT-Safe with exceptions │
59 └─────────────────────────────┴─────────────────────────────┘
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62 mbrlen(3C), mbrtowc(3C), mbsrtowcs(3C), setlocale(3C), wcrtomb(3C),
63 wcsrtombs(3C), attributes(5), environ(5), standards(5)
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66 The mbsinit() function can be used safely in multithreaded applica‐
67 tions, as long as setlocale(3C) is not being called to change the
68 locale.
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72SunOS 5.11 24 Jul 2002 mbsinit(3C)