utils::expected< void, E > Class Template Reference

Detailed Description

template<class E>
class utils::expected< void, E >

Definition at line 104 of file expected.hpp.

Public Member Functions
	expected (const unexpected< E > &error)
	expected (unexpected< E > &&error)
template<class G> requires std::is_convertible_v<G, E>
	expected (const unexpected< G > &error)
template<class G> requires std::is_convertible_v<G, E>
	expected (unexpected< G > &&error)
bool	has_value () const noexcept
	operator bool () const noexcept
void	value () const
E &	error () USERVER_IMPL_LIFETIME_BOUND
const E &	error () const USERVER_IMPL_LIFETIME_BOUND
	expected (const void &success)
	expected (void &&success)
	expected (const unexpected< E > &error)
	expected (unexpected< E > &&error)
	expected (const unexpected< G > &error)
	expected (unexpected< G > &&error)
bool	has_value () const noexcept
	Check whether *this contains an expected value.
	operator bool () const noexcept
	Check whether *this contains an expected value.
void &	value () &USERVER_IMPL_LIFETIME_BOUND
	Return reference to the value or throws bad_expected_access if it's not available.
void &&	value () &&USERVER_IMPL_LIFETIME_BOUND
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
const void &	value () const &USERVER_IMPL_LIFETIME_BOUND
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
E &	error () USERVER_IMPL_LIFETIME_BOUND
	Return reference to the error value or throws bad_expected_access if it's not available.
const E &	error () const USERVER_IMPL_LIFETIME_BOUND
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Constructor & Destructor Documentation

expected() [1/12]

template<class E>

utils::expected< void, E >::expected ( )

constexprnoexcept

Definition at line 252 of file expected.hpp.

expected() [2/12]

template<class E>

utils::expected< void, E >::expected

(

const unexpected< E > &

error

)

Definition at line 255 of file expected.hpp.

expected() [3/12]

template<class E>

utils::expected< void, E >::expected

(

unexpected< E > &&

error

)

Definition at line 260 of file expected.hpp.

expected() [4/12]

template<class E>
requires std::is_convertible_v<G, E>

template<class G>
requires std::is_convertible_v<G, E>

utils::expected< void, E >::expected

(

const unexpected< G > &

error

)

Definition at line 267 of file expected.hpp.

expected() [5/12]

template<class E>
requires std::is_convertible_v<G, E>

template<class G>
requires std::is_convertible_v<G, E>

utils::expected< void, E >::expected

(

unexpected< G > &&

error

)

Definition at line 274 of file expected.hpp.

expected() [6/12]

utils::expected< void, E >::expected ( )

constexpr

Definition at line 60 of file expected.hpp.

expected() [7/12]

utils::expected< void, E >::expected

(

const void &

success

)

Definition at line 61 of file expected.hpp.

expected() [8/12]

utils::expected< void, E >::expected

(

void &&

success

)

Definition at line 62 of file expected.hpp.

expected() [9/12]

utils::expected< void, E >::expected

(

const unexpected< E > &

error

)

Definition at line 63 of file expected.hpp.

expected() [10/12]

utils::expected< void, E >::expected

(

unexpected< E > &&

error

)

Definition at line 64 of file expected.hpp.

expected() [11/12]

utils::expected< void, E >::expected

(

const unexpected< G > &

error

)

Definition at line 68 of file expected.hpp.

expected() [12/12]

utils::expected< void, E >::expected

(

unexpected< G > &&

error

)

Definition at line 72 of file expected.hpp.

Member Function Documentation

error() [1/4]

const E & utils::expected< void, E >::error

(

)

const

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 97 of file expected.hpp.

error() [2/4]

template<class E>

const E & utils::expected< void, E >::error

(

)

const

Definition at line 305 of file expected.hpp.

error() [3/4]

E & utils::expected< void, E >::error

(

)

Return reference to the error value or throws bad_expected_access if it's not available.

Exceptions

utils::bad_expected_access

if success value is not available

Definition at line 94 of file expected.hpp.

error() [4/4]

template<class E>

E & utils::expected< void, E >::error

(

)

Definition at line 296 of file expected.hpp.

has_value() [1/2]

bool utils::expected< void, E >::has_value ( ) const

noexcept

Check whether *this contains an expected value.

Definition at line 75 of file expected.hpp.

has_value() [2/2]

template<class E>

bool utils::expected< void, E >::has_value ( ) const

noexcept

Definition at line 279 of file expected.hpp.

operator bool() [1/2]

utils::expected< void, E >::operator bool ( ) const

explicitnoexcept

Check whether *this contains an expected value.

Definition at line 78 of file expected.hpp.

operator bool() [2/2]

template<class E>

utils::expected< void, E >::operator bool ( ) const

explicitnoexcept

Definition at line 284 of file expected.hpp.

value() [1/4]

void && utils::expected< void, E >::value

(

)

&&

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 86 of file expected.hpp.

value() [2/4]

void & utils::expected< void, E >::value

(

)

&

Return reference to the value or throws bad_expected_access if it's not available.

Exceptions

utils::bad_expected_access

if *this contain an unexpected value

Definition at line 83 of file expected.hpp.

value() [3/4]

template<class E>

void utils::expected< void, E >::value

(

)

const

Definition at line 289 of file expected.hpp.

value() [4/4]

const void & utils::expected< void, E >::value

(

)

const &

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 89 of file expected.hpp.

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

• userver/utils/expected.hpp