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53 lines
1.4 KiB
53 lines
1.4 KiB
//---------------------------------------------------------------------------// |
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// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com> |
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// |
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// Distributed under the Boost Software License, Version 1.0 |
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// See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt |
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// |
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// See http://boostorg.github.com/compute for more information. |
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//---------------------------------------------------------------------------// |
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#ifndef BOOST_COMPUTE_DETAIL_LITERAL_HPP |
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#define BOOST_COMPUTE_DETAIL_LITERAL_HPP |
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#include <iomanip> |
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#include <limits> |
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#include <sstream> |
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#include <boost/type_traits/is_same.hpp> |
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#include <boost/compute/types/fundamental.hpp> |
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namespace boost { |
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namespace compute { |
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namespace detail { |
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template<class T> |
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std::string make_literal(T x) |
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{ |
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std::stringstream s; |
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s << std::setprecision( |
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#ifndef BOOST_NO_CXX11_NUMERIC_LIMITS |
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std::numeric_limits<T>::max_digits10 |
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#else |
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// We don't have max_digits10, so add 3 other digits (this is what is required for |
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// float, and is one more than required for double). |
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3 + std::numeric_limits<T>::digits10 |
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#endif |
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) |
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<< std::scientific |
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<< x; |
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if(boost::is_same<T, float>::value || boost::is_same<T, float_>::value){ |
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s << "f"; |
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} |
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return s.str(); |
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} |
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} // end detail namespace |
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} // end compute namespace |
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} // end boost namespace |
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#endif // BOOST_COMPUTE_DETAIL_LITERAL_HPP
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