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`std::promise` Allocator Constructor

Construct a std::promise object, using the supplied allocator to allocate memory for the associated asynchronous result.

template<typename Allocator>
promise(std::allocator_arg_t, Allocator const& alloc);

Effects:: Constructs a std::promise instance with an associated asynchronous result of type ResultType that is not ready. The memory for the asynchronous result is allocated through the allocator alloc.
Throws:: Any exception thrown by the allocator when attempting to allocate memory for the asynchronous result.

Header

#include <future>

See Also