PUTWC(3)                   POSIX Programmer's Manual                  PUTWC(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
       putwc -- put a wide character on a stream

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

       wint_t putwc(wchar_t _w_c, FILE *_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.1-2017
       defers to the ISO C standard.

       The _p_u_t_w_c() function shall be equivalent to _f_p_u_t_w_c(), except that if it
       is implemented as a macro it may evaluate _s_t_r_e_a_m more than once, so the
       argument should never be an expression with side-effects.

RREETTUURRNN VVAALLUUEE
       Refer to _f_p_u_t_w_c().

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
       Since it may be implemented as a macro, _p_u_t_w_c() may treat a _s_t_r_e_a_m
       argument with side-effects incorrectly. In particular, _p_u_t_w_c(_w_c,*_f++)
       need not work correctly. Therefore, use of this function is not
       recommended; _f_p_u_t_w_c() should be used instead.

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_p_u_t_w_c()

       The Base Definitions volume of POSIX.1-2017, <<ssttddiioo..hh>>, <<wwcchhaarr..hh>>

CCOOPPYYRRIIGGHHTT
       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1-2017, Standard for Information Technology --
       Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  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.opengroup.org/unix/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                  2017                             PUTWC(3)
