fputws(3) Library Functions Manual fputws(3)
NAME
fputws - Writes a wide-character string to a stream
LIBRARY
Standard C Library (libc)
SYNOPSIS
#include <stdio.h> #include <wchar.h>
int fputws( const wchar_t *wcs, FILE *stream);
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
fputws(): XSH5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
PARAMETERS
Points to a wide-character string to be written to output. Points to the FILE structure of an open file.
DESCRIPTION
The fputws() function reads the wchar_t string pointed to by the wcs parameter, converts each wide character to a multibyte character, and
writes the result to the output stream pointed to by the stream parameter. The function does not append a newline or a terminating null
character to the result.
The fputws() function parallels the fputs() function.
The st_ctime and st_mtime fields of the file are marked for update between the successful execution of the fputws() function and the next
successful completion of a call to the fflush() or fclose() function on the same stream, or a call to the exit() or abort() function.
RETURN VALUES
On successful completion, the fputws() function returns a non-negative number to indicate the number of bytes written to the output stream.
Otherwise, the function returns -1, sets the error indicator for the stream, and sets errno to indicate the error.
ERRORS
If any of the following conditions occur, the fputws() function sets errno to the corresponding value: The O_NONBLOCK flag is set for the
file descriptor underlying stream and the process would be delayed in the write operation. The file descriptor underlying stream is not a
valid file descriptor open for writing. An attempt was made to write to a file that exceeds the process's file-size limit or the maximum
file size.
The file is a regular file and an attempt was made to write at or beyond the offset maximum associated with the corresponding
stream. The write operation was interrupted by a signal that was caught, and no data was transferred. One of the following errors
was encountered: The process is a member of a background process group attempting to write to its controlling terminal and TOSTOP is
set; the process is neither ignoring nor blocking SIGTTOU and the process group of the process is orphaned. A physical I/O error
occurred. This condition is defined starting with Issue 4 Version 2 and later revisions of the XSH specification. A wide character
read from wcs does not correspond to a valid multibyte character in the current locale. There was no free space remaining on the
device containing the file. An attempt was made to write to a pipe or FIFO that is not open for reading by any process. A SIGPIPE
signal will also be sent to the process.
RELATED INFORMATION
Functions: fgetws(3), gets(3), wcstombs(3), printf(3), putc(3), puts(3), putwc(3), wprintf(3)
Standards: standards(5) delim off
fputws(3)