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



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


NNAAMMEE
       fputws -- put a wide-character string on a stream

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

       int fputws(const wchar_t *restrict _w_s, FILE *restrict _s_t_r_e_a_m);

DDEESSCCRRIIPPTTIIOONN
       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 _f_p_u_t_w_s() function shall write a character string corresponding to
       the (null-terminated) wide-character string pointed to by _w_s to the
       stream pointed to by _s_t_r_e_a_m.  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
       _f_p_u_t_w_s() and the next successful completion of a call to _f_f_l_u_s_h() or
       _f_c_l_o_s_e() on the same stream or a call to _e_x_i_t() or _a_b_o_r_t().

RREETTUURRNN VVAALLUUEE
       Upon successful completion, _f_p_u_t_w_s() shall return a non-negative
       number. Otherwise, it shall return -1, set an error indicator for the
       stream, and set _e_r_r_n_o to indicate the error.

EERRRROORRSS
       Refer to _f_p_u_t_w_c().

       _T_h_e _f_o_l_l_o_w_i_n_g _s_e_c_t_i_o_n_s _a_r_e _i_n_f_o_r_m_a_t_i_v_e_.

EEXXAAMMPPLLEESS
       None.

AAPPPPLLIICCAATTIIOONN UUSSAAGGEE
       The _f_p_u_t_w_s() 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.

RRAATTIIOONNAALLEE
       None.

FFUUTTUURREE DDIIRREECCTTIIOONNSS
       None.

SSEEEE AALLSSOO
       _S_e_c_t_i_o_n _2_._5, _S_t_a_n_d_a_r_d _I_/_O _S_t_r_e_a_m_s, _f_o_p_e_n()

       The Base Definitions volume of POSIX.1-2008, <<ssttddiioo..hh>>, <<wwcchhaarr..hh>>

CCOOPPYYRRIIGGHHTT
       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(3)
