Copyright (c) 1990, 1991, 1993
The Regents of the University of California. All rights reserved.
This code is derived from software contributed to Berkeley by
Chris Torek and the American National Standards Committee X3,
on Information Processing Systems.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
4. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
@(#)getc.3 8.1 (Berkeley) 6/4/93
$FreeBSD: head/lib/libc/stdio/getwc.3 165903 2007-01-09 00:28:16Z imp $
.Dd March 3, 2004 .Dt GETWC 3 .Os .Sh NAME .Nm fgetwc , .Nm getwc , .Nm getwchar .Nd get next wide character from input stream .Sh LIBRARY .Lb libc .Sh SYNOPSIS n stdio.h n wchar.h .Ft wint_t .Fn fgetwc "FILE *stream" .Ft wint_t .Fn getwc "FILE *stream" .Ft wint_t .Fn getwchar void .Sh DESCRIPTION The .Fn fgetwc function obtains the next input wide character (if present) from the stream pointed at by .Fa stream , or the next character pushed back on the stream via .Xr ungetwc 3 .
p The .Fn getwc function acts essentially identically to .Fn fgetwc .
p The .Fn getwchar function is equivalent to .Fn getwc with the argument .Dv stdin . .Sh RETURN VALUES If successful, these routines return the next wide character from the .Fa stream . If the stream is at end-of-file or a read error occurs, the routines return .Dv WEOF . The routines .Xr feof 3 and .Xr ferror 3 must be used to distinguish between end-of-file and error. If an error occurs, the global variable .Va errno is set to indicate the error. The end-of-file condition is remembered, even on a terminal, and all subsequent attempts to read will return .Dv WEOF until the condition is cleared with .Xr clearerr 3 . .Sh SEE ALSO .Xr ferror 3 , .Xr fopen 3 , .Xr fread 3 , .Xr getc 3 , .Xr putwc 3 , .Xr stdio 3 , .Xr ungetwc 3 .Sh STANDARDS The .Fn fgetwc , .Fn getwc and .Fn getwchar functions conform to .St -isoC-99 .