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
Converting constructor.
template<
class OtherExecutor>
strand(
const strand< OtherExecutor > & other);
This constructor is only valid if the OtherExecutor type
is convertible to Executor.