qi::SrcFuture Struct Reference

#include <future_fwd.hpp>

Public Types
using	retract_type = UnitFuture

Public Member Functions
template<typename T >
auto	operator() (const Future< T > &x) const QI_NOEXCEPT_EXPR(*x) -> decltype(*x)

Friends
UnitFuture	retract (SrcFuture)

Detailed Description

Polymorphic function that gets (sources) the value of a Future.

This function has an inverse: UnitFuture (i.e. composing with it in any order will produce a function doing nothing).

See the concept Isomorphism in concept.hpp for a more formal explanation.

Definition at line 1153 of file future_fwd.hpp.

Member Typedef Documentation

using qi::SrcFuture::retract_type = UnitFuture

Definition at line 1169 of file future_fwd.hpp.

Member Function Documentation

template<typename T >

auto qi::SrcFuture::operator() ( const Future< T > &  x ) const -> decltype(*x)

inline

Note: The return type will be void* if T is void... There is no constraint on T.

Definition at line 1162 of file future_fwd.hpp.

Friends And Related Function Documentation

UnitFuture retract ( SrcFuture  )

friend

Returns the retraction function, i.e. a function that undoes SrcFuture. As we model here the concept Isomorphism, it is also true that SrcFuture undoes UnitFuture.

See the Isomorphism concept definition for more information.

Definition at line 1176 of file future_fwd.hpp.

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The documentation for this struct was generated from the following file:

• /home/opennao/work/release-2.8/sdk/libqi/qi/detail/future_fwd.hpp