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