35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
/* Copyright (C) 1996 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stdio.h>
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#include <wchar.h>
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/* We use UTF8 encoding for multibyte strings and therefore a valid
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one byte multibyte string only can have a value from 0 to 0x7f. */
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wint_t
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btowc (c)
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int c;
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{
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if (WEOF != (wint_t) EOF || c < 0 || c > 0x7f)
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return WEOF;
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else
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return (wint_t) c;
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}
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