duration_array.hpp

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// Copyright 2024 Man Group Operations Limited
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or mplied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#pragma once
 
#include "sparrow/layout/array_trivial_copyable.hpp"
 
// tDs : std::chrono::seconds
// tDm : std::chrono::milliseconds
// tDu : std::chrono::microseconds
// tDn : std::chrono::nanoseconds
 
namespace sparrow
{
    using duration_types_t = mpl::
        typelist<std::chrono::seconds, std::chrono::milliseconds, std::chrono::microseconds, std::chrono::nanoseconds>;
 
    static constexpr duration_types_t duration_types;
    template <typename T>
    concept duration_type = mpl::contains<T>(duration_types);

    template <duration_type T>
    using duration_array = array_trivial_copyable<T>;
 
    using duration_seconds_array = duration_array<std::chrono::seconds>;
    using duration_milliseconds_array = duration_array<std::chrono::milliseconds>;
    using duration_microseconds_array = duration_array<std::chrono::microseconds>;
    using duration_nanoseconds_array = duration_array<std::chrono::nanoseconds>;
 
    template <class T>
    struct is_duration_array : std::false_type
    {
    };
 
    template <class T>
    struct is_duration_array<duration_array<T>> : std::true_type
    {
    };

    template <class T>
    constexpr bool is_duration_array_v = is_duration_array<T>::value;
}