fputws(3p) — Linux manual page


FPUTWS(3P)                POSIX Programmer's Manual               FPUTWS(3P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior), or
       the interface may not be implemented on Linux.

NAME         top

       fputws — put a wide-character string on a stream

SYNOPSIS         top

       #include <stdio.h>
       #include <wchar.h>

       int fputws(const wchar_t *restrict ws, FILE *restrict stream);

DESCRIPTION         top

       The functionality described on this reference page is aligned with
       the ISO C standard. Any conflict between the requirements described
       here and the ISO C standard is unintentional. This volume of
       POSIX.1‐2008 defers to the ISO C standard.

       The fputws() function shall write a character string corresponding to
       the (null-terminated) wide-character string pointed to by ws to the
       stream pointed to by stream.  No character corresponding to the
       terminating null wide-character code shall be written.

       The last data modification and last file status change timestamps of
       the file shall be marked for update between the successful execution
       of fputws() and the next successful completion of a call to fflush()
       or fclose() on the same stream or a call to exit() or abort().

RETURN VALUE         top

       Upon successful completion, fputws() shall return a non-negative
       number. Otherwise, it shall return −1, set an error indicator for the
       stream, and set errno to indicate the error.

ERRORS         top

       Refer to fputwc(3p).

       The following sections are informative.

EXAMPLES         top



       The fputws() function does not append a <newline>.

       This volume of POSIX.1‐2008 requires that successful completion
       simply return a non-negative integer. There are at least three known
       different implementation conventions for this requirement:

        *  Return a constant value.

        *  Return the last character written.

        *  Return the number of bytes written. Note that this implementation
           convention cannot be adhered to for strings longer than {INT_MAX}
           bytes as the value would not be representable in the return type
           of the function. For backwards-compatibility, implementations can
           return the number of bytes for strings of up to {INT_MAX} bytes,
           and return {INT_MAX} for all longer strings.

RATIONALE         top




SEE ALSO         top

       Section 2.5, Standard I/O Streams, fopen(3p)

       The Base Definitions volume of POSIX.1‐2008, stdio.h(0p), wchar.h(0p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The Open
       Group Base Specifications Issue 7, Copyright (C) 2013 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
       applied.) In the event of any discrepancy between this version and
       the original IEEE and The Open Group Standard, the original IEEE and
       The Open Group Standard is the referee document. The original
       Standard can be obtained online at http://www.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the
       source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                 2013                          FPUTWS(3P)

Pages that refer to this page: wchar.h(0p)