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 an older version of Boost and was released in 2021. The current version is 1.90.0.
The execution::is_operation_state
trait detects whether a type T satisfies the execution::operation_state concept.
template<
typename T>
struct is_operation_state
Class template is_operation_state is a type trait that is derived
from true_type if the type T meets the concept
definition for an operation_state, otherwise false_type.
Header: boost/asio/execution/operation_state.hpp
Convenience header: boost/asio/execution.hpp