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///////////////////////////////////////////////////////////////////////////////
/// \file complex.hpp
///
// Copyright 2005 Eric Niebler. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_NUMERIC_FUNCTIONAL_COMPLEX_HPP_EAN_01_17_2006
#define BOOST_NUMERIC_FUNCTIONAL_COMPLEX_HPP_EAN_01_17_2006
#ifdef BOOST_NUMERIC_FUNCTIONAL_HPP_INCLUDED
# error Include this file before boost/accumulators/numeric/functional.hpp
#endif
#include <complex>
#include <boost/mpl/or.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/typeof/std/complex.hpp>
#include <boost/accumulators/numeric/functional_fwd.hpp>
namespace boost { namespace numeric { namespace operators
{
// So that the stats compile when Sample type is std::complex
template<typename T, typename U>
typename
disable_if<
mpl::or_<is_same<T, U>, is_same<std::complex<T>, U> >
, std::complex<T>
>::type
operator *(std::complex<T> ri, U const &u)
{
// BUGBUG promote result to typeof(T()*u) ?
return ri *= static_cast<T>(u);
}
template<typename T, typename U>
typename
disable_if<
mpl::or_<is_same<T, U>, is_same<std::complex<T>, U> >
, std::complex<T>
>::type
operator /(std::complex<T> ri, U const &u)
{
// BUGBUG promote result to typeof(T()*u) ?
return ri /= static_cast<T>(u);
}
}}} // namespace boost::numeric::operators
namespace boost { namespace numeric
{
namespace detail
{
template<typename T>
struct one_complex
{
static std::complex<T> const value;
};
template<typename T>
std::complex<T> const one_complex<T>::value
= std::complex<T>(numeric::one<T>::value, numeric::one<T>::value);
}
/// INTERNAL ONLY
///
template<typename T>
struct one<std::complex<T> >
: detail::one_complex<T>
{
typedef one type;
typedef std::complex<T> value_type;
operator value_type const & () const
{
return detail::one_complex<T>::value;
}
};
}} // namespace boost::numeric
#endif
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