Class deadline_comparator

source/timers/timer_queue.cpp:26–30

namespace concurrencpp::details {
    namespace {
        struct deadline_comparator {
            bool operator()(const timer_ptr& a, const timer_ptr& b) const noexcept {
                return a->get_deadline() < b->get_deadline();
            }
        };

        class timer_queue_internal {
            using timer_set = std::multiset<timer_ptr, deadline_comparator>;