/usr/include/boost/histogram
Edit: /usr/include/boost/histogram/weight.hpp (1021B)
// Copyright 2019 Hans Dembinski
//
// 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_HISTOGRAM_WEIGHT_HPP
#define BOOST_HISTOGRAM_WEIGHT_HPP
#include
namespace boost {
namespace histogram {
/** Weight holder and type envelope.
You should not construct these directly, use the weight() helper function.
@tparam Underlying arithmetic type.
*/
template
struct weight_type {
/// Access underlying value.
T value;
/// Allow implicit conversions of types when the underlying value type allows them.
template
operator weight_type() const {
return weight_type{static_cast(value)};
}
};
/** Helper function to mark argument as weight.
@param t argument to be forward to the histogram.
*/
template
auto weight(T&& t) noexcept {
return weight_type{std::forward(t)};
}
} // namespace histogram
} // namespace boost
#endif