mirror of
https://github.com/PurpleI2P/Boost-for-Android-Prebuilt
synced 2025-01-24 05:25:26 +00:00
82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
// Copyright 2015-2019 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_AXIS_OPTION_HPP
|
|
#define BOOST_HISTOGRAM_AXIS_OPTION_HPP
|
|
|
|
#include <type_traits>
|
|
|
|
/**
|
|
\file option.hpp Options for builtin axis types.
|
|
|
|
Options `circular` and `growth` are mutually exclusive.
|
|
Options `circular` and `underflow` are mutually exclusive.
|
|
*/
|
|
|
|
namespace boost {
|
|
namespace histogram {
|
|
namespace axis {
|
|
namespace option {
|
|
|
|
/// Holder of axis options.
|
|
template <unsigned Bits>
|
|
struct bitset : std::integral_constant<unsigned, Bits> {
|
|
/// Returns true if all option flags in the argument are set and false otherwise.
|
|
template <unsigned B>
|
|
static constexpr auto test(bitset<B>) {
|
|
return std::integral_constant<bool, static_cast<bool>((Bits & B) == B)>{};
|
|
}
|
|
};
|
|
|
|
/// Set union of the axis option arguments.
|
|
template <unsigned B1, unsigned B2>
|
|
constexpr auto operator|(bitset<B1>, bitset<B2>) {
|
|
return bitset<(B1 | B2)>{};
|
|
}
|
|
|
|
/// Set intersection of the option arguments.
|
|
template <unsigned B1, unsigned B2>
|
|
constexpr auto operator&(bitset<B1>, bitset<B2>) {
|
|
return bitset<(B1 & B2)>{};
|
|
}
|
|
|
|
/// Set difference of the option arguments.
|
|
template <unsigned B1, unsigned B2>
|
|
constexpr auto operator-(bitset<B1>, bitset<B2>) {
|
|
return bitset<(B1 & ~B2)>{};
|
|
}
|
|
|
|
/**
|
|
Single option flag.
|
|
|
|
@tparam Pos position of the bit in the set.
|
|
*/
|
|
template <unsigned Pos>
|
|
struct bit : bitset<(1 << Pos)> {};
|
|
|
|
/// All options off.
|
|
using none_t = bitset<0>;
|
|
constexpr none_t none{}; ///< Instance of `none_t`.
|
|
/// Axis has an underflow bin. Mutually exclusive with `circular`.
|
|
using underflow_t = bit<0>;
|
|
constexpr underflow_t underflow{}; ///< Instance of `underflow_t`.
|
|
/// Axis has overflow bin.
|
|
using overflow_t = bit<1>;
|
|
constexpr overflow_t overflow{}; ///< Instance of `overflow_t`.
|
|
/// Axis is circular. Mutually exclusive with `growth` and `underflow`.
|
|
using circular_t = bit<2>;
|
|
constexpr circular_t circular{}; ///< Instance of `circular_t`.
|
|
/// Axis can grow. Mutually exclusive with `circular`.
|
|
using growth_t = bit<3>;
|
|
constexpr growth_t growth{}; ///< Instance of `growth_t`.
|
|
|
|
} // namespace option
|
|
} // namespace axis
|
|
} // namespace histogram
|
|
} // namespace boost
|
|
|
|
#endif
|