...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 both operations to succeed.
template< typename Executor> awaitable< void, Executor > operator &&( awaitable< void, Executor > t, awaitable< void, Executor > u);
If one operations fails, the other is cancelled as the AND-condition can no longer be satisfied.