fcppt::record::object< Elements > Class Template Reference

Detailed Description

template<typename... Elements>
class fcppt::record::object< Elements >

A generic struct that identifies elements by types.

A record of an MPL sequence fcppt::record::element element<L_1,T_1>,...,element<L_n,T_n> contains an object of type T_i, accessible by L_i, for every i = 1,...,n.

Template Parameters

Elements

Each one must be of type fcppt::record::element.

Public Types
using	all_types = fcppt::mpl::list::object<Elements...>
using	this_type = fcppt::record::object<Elements...>
using	tuple
	The fcppt::tuple::object type (T_1,...,T_n).

Public Member Functions
	object ()
	Constructor for empty records.
	object (fcppt::no_init const &)
	An uninitialized record.
template<typename... Args> requires (fcppt::record::is_vararg_ctor<Args...>::value)
	object (Args &&..._args)
	Generic constructor.
template<typename Label>
void	set (fcppt::record::label_value_type< this_type, Label > const &)
	Sets an element by copy.
template<typename Label>
void	set (fcppt::record::label_value_type< this_type, Label > &&)
	Sets an element by move.
template<typename Label>
fcppt::record::label_value_type< this_type, Label > const &	get () const
	Gets an element.
template<typename Label>
fcppt::record::label_value_type< this_type, Label > &	get ()
	Gets an element.
tuple &	impl ()
tuple const &	impl () const

Member Typedef Documentation

all_types

template<typename... Elements>

using fcppt::record::object< Elements >::all_types = fcppt::mpl::list::object<Elements...>

this_type

template<typename... Elements>

using fcppt::record::object< Elements >::this_type = fcppt::record::object<Elements...>

tuple

template<typename... Elements>

using fcppt::record::object< Elements >::tuple

Initial value:

 fcppt::mpl::list::as_tuple<
      fcppt::mpl::list::map<all_types, fcppt::mpl::lambda<fcppt::record::element_to_type>>>

The fcppt::tuple::object type (T_1,...,T_n).

Constructor & Destructor Documentation

object() [1/3]

template<typename... Elements>

fcppt::record::object< Elements >::object

(

)

Constructor for empty records.

Calling this if Elements is not empty, a compile-time error occurs.

object() [2/3]

template<typename... Elements>

fcppt::record::object< Elements >::object ( fcppt::no_init const & )

explicit

An uninitialized record.

Calls only default constructors for its elements. Use this with care.

object() [3/3]

template<typename... Elements>

template<typename... Args>
requires (fcppt::record::is_vararg_ctor<Args...>::value)

fcppt::record::object< Elements >::object ( Args &&... _args )

explicit

Generic constructor.

Initializing an element<L_i,T_i> is done by calling L_i{} = v_i where v_i is of type T_i.

The constructor checks that each L_i appears exactly once in Args.

Parameters

_args

A parameter pack, obtained by assignment to fcppt::record::label.

Template Parameters

Args	Implementation-defined init types, obtained by assignment to fcppt::record::label.

Member Function Documentation

get() [1/2]

template<typename... Elements>

template<typename Label>

fcppt::record::label_value_type< this_type, Label > & fcppt::record::object< Elements >::get ( )

nodiscard

Gets an element.

See also

fcppt::record::get.

get() [2/2]

template<typename... Elements>

template<typename Label>

fcppt::record::label_value_type< this_type, Label > const & fcppt::record::object< Elements >::get ( ) const

nodiscard

Gets an element.

See also

fcppt::record::get.

impl() [1/2]

template<typename... Elements>

tuple & fcppt::record::object< Elements >::impl ( )

nodiscard

impl() [2/2]

template<typename... Elements>

tuple const & fcppt::record::object< Elements >::impl ( ) const

nodiscard

set() [1/2]

template<typename... Elements>

template<typename Label>

void fcppt::record::object< Elements >::set

(

fcppt::record::label_value_type< this_type, Label > &&

)

Sets an element by move.

See also

fcppt::record::set.

set() [2/2]

template<typename... Elements>

template<typename Label>

void fcppt::record::object< Elements >::set

(

fcppt::record::label_value_type< this_type, Label > const &

)

Sets an element by copy.

See also

fcppt::record::set.