boost/histogram/unsafe_access.hpp
// Copyright 2018 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_UNSAFE_ACCESS_HPP
#define BOOST_HISTOGRAM_UNSAFE_ACCESS_HPP
#include <boost/histogram/detail/axes.hpp>
#include <type_traits>
namespace boost {
namespace histogram {
/// Unsafe read/write access to classes that potentially break consistency
struct unsafe_access {
/**
Get axes.
@param hist histogram.
*/
template <class Histogram>
static auto& axes(Histogram& hist) {
return hist.axes_;
}
/// @copydoc axes()
template <class Histogram>
static const auto& axes(const Histogram& hist) {
return hist.axes_;
}
/**
Get mutable axis reference with compile-time number.
@param hist histogram.
@tparam I axis index (optional, default: 0).
*/
template <class Histogram, unsigned I = 0>
static decltype(auto) axis(Histogram& hist, std::integral_constant<unsigned, I> = {}) {
detail::axis_index_is_valid(hist.axes_, I);
return detail::axis_get<I>(hist.axes_);
}
/**
Get mutable axis reference with run-time number.
@param hist histogram.
@param i axis index.
*/
template <class Histogram>
static decltype(auto) axis(Histogram& hist, unsigned i) {
detail::axis_index_is_valid(hist.axes_, i);
return detail::axis_get(hist.axes_, i);
}
/**
Get storage.
@param hist histogram.
*/
template <class Histogram>
static auto& storage(Histogram& hist) {
return hist.storage_;
}
/// @copydoc storage()
template <class Histogram>
static const auto& storage(const Histogram& hist) {
return hist.storage_;
}
};
} // namespace histogram
} // namespace boost
#endif