FPUTWC(3) Linux Programmers Manual FPUTWC(3)
NAME
fputwc, putwc - write a wide character to a FILE stream
SYNOPSIS
#include
#include
wint_t fputwc(wchar_t wc, FILE *stream);
wint_t putwc(wchar_t wc, FILE *stream);
DESCRIPTION
The fputwc() function is the wide-character equivalent of the fputc(3)
function. It writes the wide character wc to stream. If fer
ror(stream) becomes true, it returns WEOF. If a wide-character conver
sion 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 non-locking counterparts, see unlocked_stdio(3).
RETURN VALUE
The fputwc() function returns wc if no error occurred, or WEOF to indi
cate an error.
ERRORS
Apart from the usual ones, there is
EILSEQ Conversion of wc to the streams encoding fails.
CONFORMING TO
C99, POSIX.1-2001.
NOTES
The behavior of fputwc() depends on the LC_CTYPE category of the cur
rent locale.
In the absence of additional information passed to the fopen(3) call,
it is reasonable to expect that fputwc() will actually write the multi
byte sequence corresponding to the wide character wc.
SEE ALSO
fgetwc(3), fputws(3), unlocked_stdio(3)
COLOPHON
This page is part of release 3.05 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 1999-07-25 FPUTWC(3)
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