tr1/complex

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00001 // TR1 complex -*- C++ -*-
00002 
00003 // Copyright (C) 2006, 2007, 2008, 2009, 2010 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 3, 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 // Under Section 7 of GPL version 3, you are granted additional
00017 // permissions described in the GCC Runtime Library Exception, version
00018 // 3.1, as published by the Free Software Foundation.
00019 
00020 // You should have received a copy of the GNU General Public License and
00021 // a copy of the GCC Runtime Library Exception along with this program;
00022 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
00023 // <http://www.gnu.org/licenses/>.
00024 
00025 /** @file tr1/complex
00026  *  This is a TR1 C++ Library header. 
00027  */
00028 
00029 #ifndef _GLIBCXX_TR1_COMPLEX
00030 #define _GLIBCXX_TR1_COMPLEX 1
00031 
00032 #pragma GCC system_header
00033 
00034 #if defined(_GLIBCXX_INCLUDE_AS_CXX0X)
00035 #  error TR1 header cannot be included from C++0x header
00036 #endif
00037 
00038 #include <complex>
00039 
00040 #if defined(_GLIBCXX_INCLUDE_AS_TR1)
00041 #  include <tr1_impl/complex>
00042 #else
00043 #  define _GLIBCXX_INCLUDE_AS_TR1
00044 #  define _GLIBCXX_BEGIN_NAMESPACE_TR1 namespace tr1 {
00045 #  define _GLIBCXX_END_NAMESPACE_TR1 }
00046 #  define _GLIBCXX_TR1 tr1::
00047 #  include <tr1_impl/complex>
00048 #  undef _GLIBCXX_TR1
00049 #  undef _GLIBCXX_END_NAMESPACE_TR1
00050 #  undef _GLIBCXX_BEGIN_NAMESPACE_TR1
00051 #  undef _GLIBCXX_INCLUDE_AS_TR1
00052 #endif
00053 
00054 namespace std
00055 {
00056 namespace tr1
00057 {
00058   using std::arg;
00059 
00060   template<typename _Tp>
00061     inline std::complex<_Tp>
00062     conj(const std::complex<_Tp>& __z)
00063     { return std::conj(__z); }  
00064 
00065   template<typename _Tp>
00066     inline std::complex<typename __gnu_cxx::__promote<_Tp>::__type>
00067     conj(_Tp __x)
00068     { return __x; }
00069 
00070   using std::imag;
00071   using std::norm;
00072   using std::polar;
00073 
00074   template<typename _Tp, typename _Up>
00075     inline std::complex<typename __gnu_cxx::__promote_2<_Tp, _Up>::__type>
00076     polar(const _Tp& __rho, const _Up& __theta)
00077     {
00078       typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
00079       return std::polar(__type(__rho), __type(__theta));
00080     }
00081 
00082   using std::real;
00083 
00084   template<typename _Tp>
00085     inline std::complex<_Tp>
00086     pow(const std::complex<_Tp>& __x, const _Tp& __y)
00087     { return std::pow(__x, __y); }
00088 
00089   template<typename _Tp>
00090     inline std::complex<_Tp>
00091     pow(const _Tp& __x, const std::complex<_Tp>& __y)
00092     { return std::pow(__x, __y); }
00093 
00094   template<typename _Tp>
00095     inline std::complex<_Tp>
00096     pow(const std::complex<_Tp>& __x, const std::complex<_Tp>& __y)
00097     { return std::pow(__x, __y); }
00098 }
00099 }
00100 
00101 #endif // _GLIBCXX_TR1_COMPLEX