...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
T::index_type
if T::index_type
is valid, otherwise executor_shape_t<T>
.
typedef automatically_determined type;
Header: boost/asio/execution/executor.hpp
Convenience header: boost/asio/execution.hpp