FunctionResult< SIG > Struct Template Reference

#include "lib/wrapper.hpp"

Description

template<typename SIG>
struct lib::wrapper::FunctionResult< SIG >

Extension of ItemWrapper: a function remembering the result of the last invocation.

Initially, the "value" is bottom (undefined, NIL), until the function is invoked for the first time. After that, the result of the last invocation can be accessed by operator* ()

Note

deliberately non-copyable, since we capture a reference to this in order to write to the embedded ItemWrapper. (to alleviate, we'd have to re-link after copying/moving)

Definition at line 401 of file wrapper.hpp.

Public Types
using	Res = typename _Fun< SIG >::Ret
using	ResWrapper = ItemWrapper< Res >

Public Member Functions
	FunctionResult ()=default
	by default locked to invalid state
template<typename FUN >
	FunctionResult (FUN &&targetFunction)
	Create result-remembering functor by outfitting a copy of the given function with an adaptor to capture each produced result. More...

Public Attributes
ResWrapper	lastResult_

Additional Inherited Members
Protected Member Functions inherited from NonCopyable
	NonCopyable (NonCopyable const &)=delete
NonCopyable &	operator= (NonCopyable const &)=delete

Constructor & Destructor Documentation

FunctionResult()

FunctionResult ( FUN &&  targetFunction )

inline

Create result-remembering functor by outfitting a copy of the given function with an adaptor to capture each produced result.

Warning

if function result is a value, it is copied.

Definition at line 421 of file wrapper.hpp.

Inheritance diagram for FunctionResult< SIG >:

Collaboration diagram for FunctionResult< SIG >:

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

• wrapper.hpp