|
HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
|
|
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | STANDARDS | HISTORY | NOTES | SEE ALSO | COLOPHON |
|
|
|
fgetwc(3) Library Functions Manual fgetwc(3)
fgetwc, getwc - read a wide character from a FILE stream
Standard C library (libc, -lc)
#include <stdio.h>
#include <wchar.h>
wint_t fgetwc(FILE *stream);
wint_t getwc(FILE *stream);
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).
On success, fgetwc() returns the next wide-character from the
stream. Otherwise, WEOF is returned, and errno is set to
indicate the error.
Apart from the usual ones, there is
EILSEQ The data obtained from the input stream does not form a
valid character.
For an explanation of the terms used in this section, see
attributes(7).
┌─────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├─────────────────────────────────────┼───────────────┼─────────┤
│ fgetwc(), getwc() │ Thread safety │ MT-Safe │
└─────────────────────────────────────┴───────────────┴─────────┘
C11, POSIX.1-2008.
POSIX.1-2001, C99.
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.
fgetws(3), fputwc(3), ungetwc(3), unlocked_stdio(3)
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
fetched from
⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2024-06-26. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to
man-pages@man7.org
Linux man-pages 6.9.1 2024-05-02 fgetwc(3)
Pages that refer to this page: fgetc(3), fgetws(3), fputwc(3), gets(3), getwchar(3), ungetwc(3)
|
HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
|