1 // -*- C++ -*- C math library. 2 3 // Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 4 // Free Software Foundation, Inc. 5 // 6 // This file is part of the GNU ISO C++ Library. This library is free 7 // software; you can redistribute it and/or modify it under the 8 // terms of the GNU General Public License as published by the 9 // Free Software Foundation; either version 3, or (at your option) 10 // any later version. 11 12 // This library is distributed in the hope that it will be useful, 13 // but WITHOUT ANY WARRANTY; without even the implied warranty of 14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 // GNU General Public License for more details. 16 17 // Under Section 7 of GPL version 3, you are granted additional 18 // permissions described in the GCC Runtime Library Exception, version 19 // 3.1, as published by the Free Software Foundation. 20 21 // You should have received a copy of the GNU General Public License and 22 // a copy of the GCC Runtime Library Exception along with this program; 23 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24 // <http://www.gnu.org/licenses/>. 25 26 // This file was written by Gabriel Dos Reis <gdr (a] codesourcery.com> 27 28 /** @file cmath.tcc 29 * This is a Standard C++ Library file. 30 */ 31 32 #ifndef _GLIBCXX_CMATH_TCC 33 #define _GLIBCXX_CMATH_TCC 1 34 35 _GLIBCXX_BEGIN_NAMESPACE(std) 36 37 template<typename _Tp> 38 inline _Tp 39 __cmath_power(_Tp __x, unsigned int __n) 40 { 41 _Tp __y = __n % 2 ? __x : _Tp(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 _GLIBCXX_END_NAMESPACE 54 55 #endif 56
