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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | NOTES | SEE ALSO | COLOPHON |
FPUTWC(3) Linux Programmer's Manual FPUTWC(3)
fputwc, putwc - write a wide character to a FILE stream
#include <stdio.h>
#include <wchar.h>
wint_t fputwc(wchar_t wc, FILE *stream);
wint_t putwc(wchar_t wc, FILE *stream);
The fputwc() function is the wide-character equivalent of the
fputc(3) function. It writes the wide character wc to stream. If
ferror(stream) becomes true, it returns WEOF. If a wide-character
conversion error occurs, it sets errno to EILSEQ and returns WEOF.
Otherwise, it returns wc.
The putwc() function or macro functions identically to fputwc(). 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).
The fputwc() function returns wc if no error occurred, or WEOF to
indicate an error. In the event of an error, errno is set to
indicate the cause.
Apart from the usual ones, there is
EILSEQ Conversion of wc to the stream's encoding fails.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────┼───────────────┼─────────┤
│fputwc(), putwc() │ Thread safety │ MT-Safe │
└──────────────────┴───────────────┴─────────┘
POSIX.1-2001, POSIX.1-2008, C99.
The behavior of fputwc() 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 fputwc() will actually write the
multibyte sequence corresponding to the wide character wc.
fgetwc(3), fputws(3), unlocked_stdio(3)
This page is part of release 5.08 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
GNU 2017-09-15 FPUTWC(3)
Pages that refer to this page: add_wch(3x) , curs_add_wch(3x) , echo_wchar(3x) , mvadd_wch(3x) , mvwadd_wch(3x) , wadd_wch(3x) , wecho_wchar(3x)
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