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std::experimental::promise (library fundamentals TS)

From cppreference.com
 
 
Technical specifications
Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals 2 TS)
Extensions for parallelism (parallelism TS)
Extensions for concurrency (concurrency TS)
Concepts (concepts TS)
Ranges (ranges TS)
Special mathematical functions (special math TR)
 
 
 

This page is about the modified version of std::promise with type-erased allocator support provided by the Library Fundamentals TSes. For the version of promise provided by the concurrency TS supporting the std::future improvements made by that TS, see std::experimental::concurrency_v1::promise.

Defined in header <experimental/future>
template< class R > class promise;
(1) (library fundamentals TS)
template< class R > class promise<R&>;
(2) (library fundamentals TS)
template<>          class promise<void>;
(3) (library fundamentals TS)

std::experimental::fundamentals_v1::promise (and std::experimental::fundamentals_v2::promise) is a modified version of std::promise provided by the library fundamentals TS with support for type-erased allocators.

Contents

[edit] Member types

Member type Definition
allocator_type std::experimental::erased_type

[edit] Member functions

constructs the promise object
(public member function) [edit]
retrieves a pointer to the memory resource used by this object to allocate memory
(public member function) [edit]

[edit] Non-member function

specializes the swap algorithm
(function template) [edit]

[edit] Helper classes

specializes the std::uses_allocator type trait
(class template specialization) [edit]

Members identical to std::promise

Member functions

destructs the promise object
(public member function of std::promise) [edit]
assigns the shared state
(public member function of std::promise) [edit]
swaps two promise objects
(public member function of std::promise) [edit]
Getting the result
returns a future associated with the promised result
(public member function of std::promise) [edit]
Setting the result
sets the result to specific value
(public member function of std::promise) [edit]
sets the result to specific value while delivering the notification only at thread exit
(public member function of std::promise) [edit]
sets the result to indicate an exception
(public member function of std::promise) [edit]
sets the result to indicate an exception while delivering the notification only at thread exit
(public member function of std::promise) [edit]