From 64e50f15e4a4fb6ffcd2aa3774f1b0dde990e99f Mon Sep 17 00:00:00 2001 From: "Johan B. C. Engelen" Date: Mon, 6 Apr 2009 22:29:34 +0000 Subject: update 2geom. big commit as it has been a while. (2geom svn rev. 1870, i think) i turned some optional compilation stuff *on* per default, to help building inkscape. (bzr r7638) --- src/2geom/utils.cpp | 174 ++++++++++++++++++++++++++-------------------------- 1 file changed, 87 insertions(+), 87 deletions(-) (limited to 'src/2geom/utils.cpp') diff --git a/src/2geom/utils.cpp b/src/2geom/utils.cpp index 579718553..f0f42ce01 100644 --- a/src/2geom/utils.cpp +++ b/src/2geom/utils.cpp @@ -1,87 +1,87 @@ -/** Various utility functions. - * - * Copyright 2008 Marco Cecchetti - * Copyright 2007 Johan Engelen - * Copyright 2006 Michael G. Sloan - * - * This library is free software; you can redistribute it and/or - * modify it either under the terms of the GNU Lesser General Public - * License version 2.1 as published by the Free Software Foundation - * (the "LGPL") or, at your option, under the terms of the Mozilla - * Public License Version 1.1 (the "MPL"). If you do not alter this - * notice, a recipient may use your version of this file under either - * the MPL or the LGPL. - * - * You should have received a copy of the LGPL along with this library - * in the file COPYING-LGPL-2.1; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * You should have received a copy of the MPL along with this library - * in the file COPYING-MPL-1.1 - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (the "License"); you may not use this file except in - * compliance with the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY - * OF ANY KIND, either express or implied. See the LGPL or the MPL for - * the specific language governing rights and limitations. - * - */ - - -#include <2geom/utils.h> - - -namespace Geom -{ - -// return a vector that contains all the binomial coefficients of degree n -void binomial_coefficients(std::vector& bc, size_t n) -{ - size_t s = n+1; - bc.clear(); - bc.resize(s); - bc[0] = 1; - size_t k; - for (size_t i = 1; i < n; ++i) - { - k = i >> 1; - if (i & 1u) - { - bc[k+1] = bc[k] << 1; - } - for (size_t j = k; j > 0; --j) - { - bc[j] += bc[j-1]; - } - } - s >>= 1; - for (size_t i = 0; i < s; ++i) - { - bc[n-i] = bc[i]; - } -} - -} // end namespace Geom - - - - - - - - - - - -/* - Local Variables: - mode:c++ - c-file-style:"stroustrup" - c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) - indent-tabs-mode:nil - fill-column:99 - End: -*/ -// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : +/** Various utility functions. + * + * Copyright 2008 Marco Cecchetti + * Copyright 2007 Johan Engelen + * Copyright 2006 Michael G. Sloan + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + */ + + +#include <2geom/utils.h> + + +namespace Geom +{ + +// return a vector that contains all the binomial coefficients of degree n +void binomial_coefficients(std::vector& bc, size_t n) +{ + size_t s = n+1; + bc.clear(); + bc.resize(s); + bc[0] = 1; + size_t k; + for (size_t i = 1; i < n; ++i) + { + k = i >> 1; + if (i & 1u) + { + bc[k+1] = bc[k] << 1; + } + for (size_t j = k; j > 0; --j) + { + bc[j] += bc[j-1]; + } + } + s >>= 1; + for (size_t i = 0; i < s; ++i) + { + bc[n-i] = bc[i]; + } +} + +} // end namespace Geom + + + + + + + + + + + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : -- cgit v1.2.3