cmath.tcc revision 132720
1218585Sjkim// -*- C++ -*- C math library. 2218585Sjkim 3245582Sjkim// Copyright (C) 2000, 2003, 2004 Free Software Foundation, Inc. 4218585Sjkim// 5218585Sjkim// This file is part of the GNU ISO C++ Library. This library is free 6218585Sjkim// software; you can redistribute it and/or modify it under the 7218585Sjkim// terms of the GNU General Public License as published by the 8306536Sjkim// Free Software Foundation; either version 2, or (at your option) 9218585Sjkim// any later version. 10218585Sjkim 11218585Sjkim// This library is distributed in the hope that it will be useful, 12218585Sjkim// but WITHOUT ANY WARRANTY; without even the implied warranty of 13218585Sjkim// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14218585Sjkim// GNU General Public License for more details. 15218585Sjkim 16218585Sjkim// You should have received a copy of the GNU General Public License along 17218585Sjkim// with this library; see the file COPYING. If not, write to the Free 18218585Sjkim// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 19218585Sjkim// USA. 20218585Sjkim 21218585Sjkim// As a special exception, you may use this file as part of a free software 22218585Sjkim// library without restriction. Specifically, if other files instantiate 23218585Sjkim// templates or use macros or inline functions from this file, or you compile 24218585Sjkim// this file and link it with other files to produce an executable, this 25218585Sjkim// file does not by itself cause the resulting executable to be covered by 26218585Sjkim// the GNU General Public License. This exception does not however 27218585Sjkim// invalidate any other reasons why the executable file might be covered by 28218585Sjkim// the GNU General Public License. 29218585Sjkim 30218585Sjkim// This file was written by Gabriel Dos Reis <gdr@codesourcery.com> 31218585Sjkim 32218585Sjkim#ifndef _GLIBCXX_CMATH_TCC 33218585Sjkim#define _GLIBCXX_CMATH_TCC 1 34218585Sjkim 35218585Sjkimnamespace std 36218585Sjkim{ 37218585Sjkim template<typename _Tp> 38218585Sjkim inline _Tp 39218585Sjkim __cmath_power(_Tp __x, unsigned int __n) 40218585Sjkim { 41218585Sjkim _Tp __y = __n % 2 ? __x : 1; 42218585Sjkim 43218585Sjkim while (__n >>= 1) 44218590Sjkim { 45218585Sjkim __x = __x * __x; 46218590Sjkim if (__n % 2) 47218590Sjkim __y = __y * __x; 48218585Sjkim } 49218585Sjkim 50218585Sjkim return __y; 51218585Sjkim } 52218585Sjkim} 53218585Sjkim 54306536Sjkim#endif 55306536Sjkim