fgetwc(3) — Справочная страница Linux

fgetwc(3)               Library Functions Manual               fgetwc(3)

ИМЯ

       fgetwc, getwc - read a wide character from a FILE stream

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #include <stdio.h>
       #include <wchar.h>

       wint_t fgetwc(FILE *stream);
       wint_t getwc(FILE *stream);

ОПИСАНИЕ

       The fgetwc() function is the wide-character equivalent of the
       fgetc(3) function.  It reads a wide character from stream and
       returns it.  If the end of stream is reached, or if
       ferror(stream) becomes true, it returns WEOF.  If a wide-
       character conversion error occurs, it sets errno to EILSEQ and
       returns WEOF.

       The getwc() function or macro functions identically to fgetwc().
       It may be implemented as a macro, and may evaluate its argument
       more than once.  There is no reason ever to use it.

       For nonlocking counterparts, see unlocked_stdio(3).

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       On success, fgetwc() returns the next wide-character from the
       stream.  Otherwise, WEOF is returned, and errno is set to
       indicate the error.

ОШИБКИ

       Apart from the usual ones, there is

       EILSEQ The data obtained from the input stream does not form a
              valid character.

АТРИБУТЫ

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

СТАНДАРТЫ

       C11, POSIX.1-2008.

ИСТОРИЯ

       POSIX.1-2001, C99.

ПРИМЕЧАНИЯ

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

       In the absence of additional information passed to the fopen(3)
       call, it is reasonable to expect that fgetwc() will actually read
       a multibyte sequence from the stream and then convert it to a
       wide character.

СМОТРИТЕ ТАКЖЕ

       fgetws(3), fputwc(3), ungetwc(3), unlocked_stdio(3)

КОЛОФОН

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
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       2024-06-26.  If you discover any rendering problems in this HTML
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       man-pages@man7.org

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

Страницы, ссылающиеся на эту страницу: fgetc(3), fgetws(3), fputwc(3), gets(3), getwchar(3), ungetwc(3)