ad1a64baff
2007-04-08 Alexey Beshenov <bav.272304@gmail.com> PR libstdc++/31511 * include/c_global/cmath.tcc (__cmath_power): Use _Tp(1). * include/c_std/cmath.tcc (__cmath_power): Likewise. From-SVN: r123665
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
// -*- C++ -*- C math library.
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// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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// Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This 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
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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// This file was written by Gabriel Dos Reis <gdr@codesourcery.com>
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/** @file cmath.tcc
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* This is a Standard C++ Library file.
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*/
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#ifndef _GLIBCXX_CMATH_TCC
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#define _GLIBCXX_CMATH_TCC 1
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_GLIBCXX_BEGIN_NAMESPACE(std)
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template<typename _Tp>
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inline _Tp
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__cmath_power(_Tp __x, unsigned int __n)
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{
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_Tp __y = __n % 2 ? __x : _Tp(1);
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while (__n >>= 1)
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{
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__x = __x * __x;
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if (__n % 2)
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__y = __y * __x;
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}
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return __y;
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}
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_GLIBCXX_END_NAMESPACE
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#endif
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