##### basic_system_executor::query (2 of 4 overloads)

Query the current value of the `context` property.

    static system_context & query(
        execution::context_t );

Do not call this function directly. It is intended for use with the `query` customisation point.

For example:

    asio::system_executor ex;
    asio::system_context& pool = asio::query(
        ex, asio::execution::context);