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
The
execution::context_t property can be preferred,
it the underlying property can be preferred.
static constexpr bool is_preferable = automatically_determined;
true if Property::is_preferable
is true, otherwise false.