btowc.3 revision 302408
Copyright (c) 2002 Tim J. Robbins
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$FreeBSD: stable/11/lib/libc/locale/btowc.3 248803 2013-03-27 21:31:40Z jilles $
.Dd February 13, 2012 .Dt BTOWC 3 .Os .Sh NAME .Nm btowc , .Nm wctob .Nd "convert between wide and single-byte characters" .Sh LIBRARY .Lb libc .Sh SYNOPSIS n wchar.h .Ft wint_t .Fn btowc "int c" .Ft int .Fn wctob "wint_t c" n wchar.h n xlocale.h .Ft wint_t .Fn btowc_l "int c" "locale_t loc" .Ft int .Fn wctob_l "wint_t c" "locale_t loc" .Sh DESCRIPTION The .Fn btowc function converts a single-byte character into a corresponding wide character. If the character is .Dv EOF or not valid in the initial shift state, .Fn btowc returns .Dv WEOF .
All rights reserved.
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.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
$FreeBSD: stable/11/lib/libc/locale/btowc.3 248803 2013-03-27 21:31:40Z jilles $
.Dd February 13, 2012 .Dt BTOWC 3 .Os .Sh NAME .Nm btowc , .Nm wctob .Nd "convert between wide and single-byte characters" .Sh LIBRARY .Lb libc .Sh SYNOPSIS n wchar.h .Ft wint_t .Fn btowc "int c" .Ft int .Fn wctob "wint_t c" n wchar.h n xlocale.h .Ft wint_t .Fn btowc_l "int c" "locale_t loc" .Ft int .Fn wctob_l "wint_t c" "locale_t loc" .Sh DESCRIPTION The .Fn btowc function converts a single-byte character into a corresponding wide character. If the character is .Dv EOF or not valid in the initial shift state, .Fn btowc returns .Dv WEOF .
p The .Fn wctob function converts a wide character into a corresponding single-byte character. If the wide character is .Dv WEOF or not able to be represented as a single byte in the initial shift state, .Fn wctob returns .Dv EOF .
p The _l-suffixed versions take an explicit locale argument, while the non-suffixed versions use the current global or per-thread locale. .Sh SEE ALSO .Xr mbrtowc 3 , .Xr multibyte 3 , .Xr wcrtomb 3 .Sh STANDARDS The .Fn btowc and .Fn wctob functions conform to .St -p1003.1-2001 . .Sh HISTORY The .Fn btowc and .Fn wctob functions first appeared in .Fx 5.0 .