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FPUTWC

Section: Linux Programmer's Manual (3)
Updated: 2013-04-19
Index Return to Main Contents
 

NAME

fputwc, putwc - write a wide character to a FILE stream  

SYNOPSIS

#include <stdio.h>

#include <wchar.h> 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 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).  

RETURN VALUE

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.  

ERRORS

Apart from the usual ones, there is
EILSEQ
Conversion of wc to the stream's encoding fails.
 

CONFORMING TO

C99, POSIX.1-2001.  

NOTES

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.  

SEE ALSO

fgetwc(3), fputws(3), unlocked_stdio(3)  

COLOPHON

This page is part of release 3.81 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 http://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
CONFORMING TO
NOTES
SEE ALSO
COLOPHON


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