wctob(3) — Linux manual page

wctob(3)                Library Functions Manual                wctob(3)

NAME

       wctob - try to represent a wide character as a single byte

LIBRARY

       Standard C library (libc, -lc)

SYNOPSIS

       #include <wchar.h>

       int wctob(wint_t c);

DESCRIPTION

       The wctob() function tests whether the multibyte representation
       of the wide character c, starting in the initial state, consists
       of a single byte.  If so, it is returned as an unsigned char.

       Never use this function.  It cannot help you in writing
       internationalized programs.  Internationalized programs must
       never distinguish single-byte and multibyte characters.

RETURN VALUE

       The wctob() function returns the single-byte representation of c,
       if it exists, or EOF otherwise.

ATTRIBUTES

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           │ Attribute     │ Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ wctob()                             │ Thread safety │ MT-Safe │
       └─────────────────────────────────────┴───────────────┴─────────┘

STANDARDS

       C11, POSIX.1-2008.

HISTORY

       POSIX.1-2001, C99.

NOTES

       The behavior of wctob() depends on the LC_CTYPE category of the
       current locale.

       This function should never be used.  Internationalized programs
       must never distinguish single-byte and multibyte characters.  Use
       either wctomb(3) or the thread-safe wcrtomb(3) instead.

SEE ALSO

       btowc(3), wcrtomb(3), wctomb(3)

COLOPHON

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Linux man-pages 6.9.1          2024-05-02                       wctob(3)

Pages that refer to this page: btowc(3)

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