RetroSearch Browse

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://cplusplus.com/reference/future/promise/uses_allocator/ below:

class template

std::uses_allocator<promise>

template <class T, class Alloc>  struct uses_allocator<promise<T>,Alloc>;

Uses allocator for promise

This trait specialization of uses_allocator informs that promise objects can be constructed with allocators, even though the class does not have any allocator_type member. It is defined in the <future> with the same behavior as:

1
2

template <class T, class Alloc>
  struct uses_allocator<promise<T>,Alloc> : true_type {};