cmath.tcc revision 97403
1// -*- C++ -*- C math library. 2 3// Copyright (C) 2000 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 2, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// You should have received a copy of the GNU General Public License along 17// with this library; see the file COPYING. If not, write to the Free 18// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 19// USA. 20 21// As a special exception, you may use this file as part of a free software 22// library without restriction. Specifically, if other files instantiate 23// templates or use macros or inline functions from this file, or you compile 24// this file and link it with other files to produce an executable, this 25// file does not by itself cause the resulting executable to be covered by 26// the GNU General Public License. This exception does not however 27// invalidate any other reasons why the executable file might be covered by 28// the GNU General Public License. 29 30// This file was written by Gabriel Dos Reis <gdr@codesourcery.com> 31 32#ifndef _CPP_BITS_CMATH_TCC 33#define _CPP_BITS_CMATH_TCC 1 34 35namespace std 36{ 37 export template<typename _Tp> 38 _Tp 39 __cmath_power(_Tp __x, unsigned int __n) 40 { 41 _Tp __y = __n % 2 ? __x : 1; 42 43 while (__n >>= 1) 44 { 45 __x = __x * __x; 46 if (__n % 2) 47 __y = __y * __x; 48 } 49 50 return __y; 51 } 52} 53 54#endif 55