cmath.tcc revision 132720
1151937Sjkim// -*- C++ -*- C math library. 2151937Sjkim 3151937Sjkim// Copyright (C) 2000, 2003, 2004 Free Software Foundation, Inc. 4151937Sjkim// 5151937Sjkim// This file is part of the GNU ISO C++ Library. This library is free 6151937Sjkim// software; you can redistribute it and/or modify it under the 7217365Sjkim// terms of the GNU General Public License as published by the 8298714Sjkim// Free Software Foundation; either version 2, or (at your option) 9151937Sjkim// any later version. 10151937Sjkim 11217365Sjkim// This library is distributed in the hope that it will be useful, 12217365Sjkim// but WITHOUT ANY WARRANTY; without even the implied warranty of 13217365Sjkim// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14217365Sjkim// GNU General Public License for more details. 15217365Sjkim 16217365Sjkim// You should have received a copy of the GNU General Public License along 17217365Sjkim// with this library; see the file COPYING. If not, write to the Free 18217365Sjkim// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 19217365Sjkim// USA. 20217365Sjkim 21217365Sjkim// As a special exception, you may use this file as part of a free software 22217365Sjkim// library without restriction. Specifically, if other files instantiate 23217365Sjkim// templates or use macros or inline functions from this file, or you compile 24217365Sjkim// this file and link it with other files to produce an executable, this 25151937Sjkim// file does not by itself cause the resulting executable to be covered by 26217365Sjkim// the GNU General Public License. This exception does not however 27217365Sjkim// invalidate any other reasons why the executable file might be covered by 28217365Sjkim// the GNU General Public License. 29151937Sjkim 30217365Sjkim// This file was written by Gabriel Dos Reis <gdr@codesourcery.com> 31217365Sjkim 32217365Sjkim#ifndef _GLIBCXX_CMATH_TCC 33217365Sjkim#define _GLIBCXX_CMATH_TCC 1 34217365Sjkim 35217365Sjkimnamespace std 36217365Sjkim{ 37217365Sjkim template<typename _Tp> 38217365Sjkim inline _Tp 39217365Sjkim __cmath_power(_Tp __x, unsigned int __n) 40217365Sjkim { 41217365Sjkim _Tp __y = __n % 2 ? __x : 1; 42217365Sjkim 43151937Sjkim while (__n >>= 1) 44151937Sjkim { 45151937Sjkim __x = __x * __x; 46151937Sjkim if (__n % 2) 47151937Sjkim __y = __y * __x; 48151937Sjkim } 49151937Sjkim 50151937Sjkim return __y; 51151937Sjkim } 52151937Sjkim} 53151937Sjkim 54151937Sjkim#endif 55151937Sjkim