1.\" $OpenBSD: putwc.3,v 1.5 2017/12/01 11:18:40 schwarze Exp $ 2.\" 3.\" $NetBSD: putwc.3,v 1.7 2003/09/08 17:54:32 wiz Exp $ 4.\" 5.\" Copyright (c) 1990, 1991, 1993 6.\" The Regents of the University of California. All rights reserved. 7.\" 8.\" This code is derived from software contributed to Berkeley by 9.\" Chris Torek and the American National Standards Committee X3, 10.\" on Information Processing Systems. 11.\" 12.\" Redistribution and use in source and binary forms, with or without 13.\" modification, are permitted provided that the following conditions 14.\" are met: 15.\" 1. Redistributions of source code must retain the above copyright 16.\" notice, this list of conditions and the following disclaimer. 17.\" 2. Redistributions in binary form must reproduce the above copyright 18.\" notice, this list of conditions and the following disclaimer in the 19.\" documentation and/or other materials provided with the distribution. 20.\" 3. Neither the name of the University nor the names of its contributors 21.\" may be used to endorse or promote products derived from this software 22.\" without specific prior written permission. 23.\" 24.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34.\" SUCH DAMAGE. 35.\" 36.\" @(#)putc.3 8.1 (Berkeley) 6/4/93 37.\" 38.Dd $Mdocdate: December 1 2017 $ 39.Dt PUTWC 3 40.Os 41.Sh NAME 42.Nm fputwc , 43.Nm putwc , 44.Nm putwchar 45.Nd output a wide character to a stream 46.Sh SYNOPSIS 47.In stdio.h 48.In wchar.h 49.Ft wint_t 50.Fn fputwc "wchar_t wc" "FILE *stream" 51.Ft wint_t 52.Fn putwc "wchar_t wc" "FILE *stream" 53.Ft wint_t 54.Fn putwchar "wchar_t wc" 55.Sh DESCRIPTION 56The 57.Fn fputwc 58function 59writes the wide character 60.Fa wc 61to the output stream pointed to by 62.Fa stream . 63.Pp 64.Fn putwc 65acts essentially identically to 66.Fn fputwc , 67but is a macro that expands in-line. 68It may evaluate 69.Fa stream 70more than once, so arguments given to 71.Fn putwc 72should not be expressions with potential side effects. 73.Pp 74.Fn putwchar 75is identical to 76.Fn putwc 77with an output stream of 78.Em stdout . 79.Sh RETURN VALUES 80The functions, 81.Fn fputwc , 82.Fn putwc 83and 84.Fn putwchar 85return the wide character written. 86If an error occurs, the value 87.Dv WEOF 88is returned. 89.Sh SEE ALSO 90.Xr ferror 3 , 91.Xr fopen 3 , 92.Xr getwc 3 , 93.Xr putc 3 , 94.Xr stdio 3 95.Sh STANDARDS 96The functions 97.Fn fputwc , 98.Fn putwc , 99and 100.Fn putwchar , 101conform to 102.St -isoC-99 . 103