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 <[email protected]> 31 32 #ifndef _CPP_BITS_CMATH_TCC 33 #define _CPP_BITS_CMATH_TCC 1 34 35 namespace 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