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/* $OpenBSD: wcswidth.c,v 1.5 2015/09/12 16:23:14 guenther Exp $ */ |
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/* $NetBSD: wcswidth.c,v 1.2 2001/01/03 14:29:37 lukem Exp $ */ |
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/*- |
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* Copyright (c)1999 Citrus Project, |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* citrus Id: wcswidth.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp |
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*/ |
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#include <wchar.h> |
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int |
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wcswidth(const wchar_t *s, size_t n) |
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{ |
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int w, q; |
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w = 0; |
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while (n && *s) { |
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q = wcwidth(*s); |
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if (q == -1) |
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return (-1); |
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w += q; |
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s++; |
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n--; |
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} |
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return w; |
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} |
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DEF_WEAK(wcswidth); |