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
Wait for one operation to succeed.
template<
typename U,
typename Executor>
awaitable< std::variant< std::monostate, U >, Executor > operator||(
awaitable< void, Executor > t,
awaitable< U, Executor > u);
If one operations succeeds, the other is cancelled as the OR-condition is already satisfied.