event.hpp

/*
 * This file is part of libtcspc
 * Copyright 2019-2026 Board of Regents of the University of Wisconsin System
 * SPDX-License-Identifier: MIT
 */
 
#pragma once
 
#include "type_list.hpp"
 
#include <concepts>
#include <ostream>
 
namespace tcspc::internal {
 
template <typename Event>
concept abstime_stamped = requires { Event::abstime; };
 
template <typename E>
concept ostreamable = requires(std::ostream &s, E const &e) {
    { s << e } -> std::same_as<std::ostream &>;
};
 
template <typename EventList>
inline constexpr bool is_ostreamable_list_v = false;
 
template <typename... Es>
inline constexpr bool is_ostreamable_list_v<type_list<Es...>> =
    (ostreamable<Es> && ...);
 
} // namespace tcspc::internal