dpp::when_any< Args >::result Class Reference

Object returned by operator co_await() on resumption. Can be moved but not copied. More...

#include <when_any.h>

Public Member Functions
	result (const result &)=delete
	This object is not copyable.
	result (result &&)=default
	Move constructor.
template<size_t N>
result_t< N > &	get () &
	Retrieve the non-void result of an awaitable.
template<size_t N>
result_t< N > &&	get () &&
	Retrieve the non-void result of an awaitable.
template<size_t N>
const result_t< N > &	get () const &
	Retrieve the non-void result of an awaitable.
template<size_t N> requires (detail::when_any::void_result<result_t<N>>)
void	get ()=delete
	Cannot retrieve a void result.
size_t	index () const noexcept
	Retrieve the index of the awaitable that finished first.
bool	is_exception () const noexcept
	Checks whether the return of the first awaitable triggered an exception, that is, a call to get() will rethrow.
result &	operator= (const result &)=delete
	This object is not copyable.
result &	operator= (result &&)=default
	Move assignment operator.

Friends
class	when_any< Args... >

Detailed Description

template<typename... Args>
class dpp::when_any< Args >::result

Object returned by operator co_await() on resumption. Can be moved but not copied.

Constructor & Destructor Documentation

result() [1/2]

template<typename... Args>

dpp::when_any< Args >::result::result ( result &&  )

default

Move constructor.

result() [2/2]

template<typename... Args>

dpp::when_any< Args >::result::result ( const result &  )

delete

This object is not copyable.

Member Function Documentation

get() [1/4]

template<typename... Args>

template<size_t N>

result_t< N > & dpp::when_any< Args >::result::get ( ) &

inline

Retrieve the non-void result of an awaitable.

Template Parameters

N	Index of the result to retrieve. Must correspond to index().

Exceptions

???	Throws any exception triggered at construction, or std::bad_variant_access if N does not correspond to index()

Returns

Result of the awaitable as a reference.

get() [2/4]

template<typename... Args>

template<size_t N>

result_t< N > && dpp::when_any< Args >::result::get ( ) &&

inline

Retrieve the non-void result of an awaitable.

Template Parameters

N	Index of the result to retrieve. Must correspond to index().

Exceptions

???	Throws any exception triggered at construction, or std::bad_variant_access if N does not correspond to index()

Returns

Result of the awaitable as an rvalue reference.

get() [3/4]

template<typename... Args>

template<size_t N>

const result_t< N > & dpp::when_any< Args >::result::get ( ) const &

inline

Retrieve the non-void result of an awaitable.

Template Parameters

N	Index of the result to retrieve. Must correspond to index().

Exceptions

???	Throws any exception triggered at construction, or std::bad_variant_access if N does not correspond to index()

Returns

Result of the awaitable as a cpnst reference.

get() [4/4]

template<typename... Args>

template<size_t N>
requires (detail::when_any::void_result<result_t<N>>)

void dpp::when_any< Args >::result::get ( )

delete

Cannot retrieve a void result.

index()

template<typename... Args>

size_t dpp::when_any< Args >::result::index ( ) const

inlinenoexcept

Retrieve the index of the awaitable that finished first.

Returns

size_t Index of the awaitable that finished first, relative to the template arguments of when_any

is_exception()

template<typename... Args>

bool dpp::when_any< Args >::result::is_exception ( ) const

inlinenoexcept

Checks whether the return of the first awaitable triggered an exception, that is, a call to get() will rethrow.

Returns

Whether or not the result is an exception

operator=() [1/2]

template<typename... Args>

result & dpp::when_any< Args >::result::operator= ( const result &  )

delete

This object is not copyable.

operator=() [2/2]

template<typename... Args>

result & dpp::when_any< Args >::result::operator= ( result &&  )

default

Move assignment operator.

Friends And Related Symbol Documentation

when_any< Args... >

template<typename... Args>

friend class when_any< Args... >

friend