fputwc()

Write a wide character to a stream

Synopsis:

#include <wchar.h>

wint_t fputwc( wchar_t wc, 
               FILE * fp );

Library:

libc

Description:

The fputwc() function writes the wide character specified by wc, cast as (wint_t)(wchar_t), to the stream specified by fp.

Returns:

The wide character written, cast as (wint_t)(wchar_t), or WEOF if an error occurred (errno is set). Note that if wc exceeds the valid wide-character range, the value returned is the wide character written, not wc.

Errors:

EAGAIN

The O_NONBLOCK flag is set for fp and would have been blocked by this operation.

EBADF

The file descriptor for fp isn't valid for writing.

EFBIG

The file exceeds the maximum file size, the process's file size limit, or the function can't write at or beyond the offset maximum.

EINTR

A signal terminated the write operation; no data was transferred.

EIO

A physical I/O error has occurred or all of the following conditions were met:

• The process is in the background.
• TOSTOP is set.
• The process is blocking/ignoring SIGTOU.
• The process group is orphaned.

EPIPE

Can't write to pipe or FIFO because it's closed; a SIGPIPE signal is also sent to the thread.

Classification:

ANSI

See also:

errno

"Stream I/O functions" and "Wide-character functions" in the summary of functions chapter.