#### basic_deadline_timer::cancel_one

Cancels one asynchronous operation that is waiting on the timer.

    std::size_t cancel_one();
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    std::size_t cancel_one(
        asio::error_code & ec);
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Copyright © 2003-2025 Christopher M. Kohlhoff

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)