# cmath.tcc

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    00001 // -*- C++ -*- C math library.
    00002
    00003 // Copyright (C) 2000, 2003, 2004, 2006 Free Software Foundation, Inc.
    00004 //
    00005 // This file is part of the GNU ISO C++ Library.  This library is free
    00006 // software; you can redistribute it and/or modify it under the
    00007 // terms of the GNU General Public License as published by the
    00008 // Free Software Foundation; either version 2, or (at your option)
    00009 // any later version.
    00010
    00011 // This library is distributed in the hope that it will be useful,
    00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
    00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00014 // GNU General Public License for more details.
    00015
    00016 // You should have received a copy of the GNU General Public License along
    00017 // with this library; see the file COPYING.  If not, write to the Free
    00018 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
    00019 // USA.
    00020
    00021 // As a special exception, you may use this file as part of a free software
    00022 // library without restriction.  Specifically, if other files instantiate
    00023 // templates or use macros or inline functions from this file, or you compile
    00024 // this file and link it with other files to produce an executable, this
    00025 // file does not by itself cause the resulting executable to be covered by
    00026 // the GNU General Public License.  This exception does not however
    00027 // invalidate any other reasons why the executable file might be covered by
    00028 // the GNU General Public License.
    00029
    00030 // This file was written by Gabriel Dos Reis <gdr@codesourcery.com>
    00031
    00032 /** @file cmath.tcc
    00033  *  This is a Standard C++ Library file.
    00034  */
    00035
    00036 #ifndef _GLIBCXX_CMATH_TCC
    00037 #define _GLIBCXX_CMATH_TCC 1
    00038
    00039 _GLIBCXX_BEGIN_NAMESPACE(std)
    00040
    00041   template<typename _Tp>
    00042     inline _Tp
    00043     __cmath_power(_Tp __x, unsigned int __n)
    00044     {
    00045       _Tp __y = __n % 2 ? __x : 1;
    00046
    00047       while (__n >>= 1)
    00048         {
    00049           __x = __x * __x;
    00050           if (__n % 2)
    00051             __y = __y * __x;
    00052         }
    00053
    00054       return __y;
    00055     }
    00056
    00057 _GLIBCXX_END_NAMESPACE
    00058
    00059 #endif