Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for a snapshot of the develop branch, built from commit 30a73a660e.
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strand::query

Forward a query to the underlying executor.

template<
    typename Property>
constraint< can_query< const Executor &, Property >::value, typename query_result< const Executor &, Property >::type >::type query(
    const Property & p) const;

Do not call this function directly. It is intended for use with the execution::execute customisation point.

For example:

boost::asio::strand<my_executor_type> ex = ...;
if (boost::asio::query(ex, boost::asio::execution::blocking)
      == boost::asio::execution::blocking.never)
  ...

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