1WCTOB(3) Linux Programmer's Manual WCTOB(3)
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6 wctob - try to represent a wide character as a single byte
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9 #include <wchar.h>
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11 int wctob(wint_t c);
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14 The wctob() function tests whether the multibyte representation of the
15 wide character c, starting in the initial state, consists of a single
16 byte. If so, it is returned as an unsigned char.
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18 Never use this function. It cannot help you in writing international‐
19 ized programs. Internationalized programs must never distinguish sin‐
20 gle-byte and multibyte characters.
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23 The wctob() function returns the single-byte representation of c, if it
24 exists, or EOF otherwise.
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27 For an explanation of the terms used in this section, see at‐
28 tributes(7).
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30 ┌────────────────────────────────────────────┬───────────────┬─────────┐
31 │Interface │ Attribute │ Value │
32 ├────────────────────────────────────────────┼───────────────┼─────────┤
33 │wctob() │ Thread safety │ MT-Safe │
34 └────────────────────────────────────────────┴───────────────┴─────────┘
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37 POSIX.1-2001, POSIX.1-2008, C99.
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40 The behavior of wctob() depends on the LC_CTYPE category of the current
41 locale.
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43 This function should never be used. Internationalized programs must
44 never distinguish single-byte and multibyte characters. Use either wc‐
45 tomb(3) or the thread-safe wcrtomb(3) instead.
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48 btowc(3), wcrtomb(3), wctomb(3)
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51 This page is part of release 5.13 of the Linux man-pages project. A
52 description of the project, information about reporting bugs, and the
53 latest version of this page, can be found at
54 https://www.kernel.org/doc/man-pages/.
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58GNU 2021-03-22 WCTOB(3)