#include <KeyValuePair.h>

Inheritance diagram for Stroika::Foundation::Common::KeyValuePair< KEY_TYPE, VALUE_TYPE >:

Public Member Functions
constexpr	KeyValuePair ()=default

constexpr bool	operator== (const KeyValuePair &) const

constexpr auto	operator<=> (const KeyValuePair &) const

Detailed Description

template<typename KEY_TYPE, typename VALUE_TYPE>
struct Stroika::Foundation::Common::KeyValuePair< KEY_TYPE, VALUE_TYPE >

Essentially the same as pair<KEY_TYPE,VALUE_TYPE> but with more clearly named data elements (when used for mappings, or other key/value pairs).

Note: moderately interoperable with pair<>; Supports KeyValuePair<T,void> - so second type maybe void (sometimes useful as degenerate case - e.g. SkipList); Comparisons: o static_assert (totally_ordered<KEY_TYPE> and totally_ordered<VALUE_TYPE> IMPLIES totally_ordered<KeyValuePair<...>>)

Definition at line 35 of file KeyValuePair.h.

Constructor & Destructor Documentation

◆ KeyValuePair()

template<typename KEY_TYPE , typename VALUE_TYPE >

constexpr Stroika::Foundation::Common::KeyValuePair< KEY_TYPE, VALUE_TYPE >::KeyValuePair ( )

constexprdefault

Similar logic for what overloads are available to pair<>, but here we also allow construction from a 'pair<>'.

Member Function Documentation

◆ operator==()

template<typename KEY_TYPE , typename VALUE_TYPE >
requires (equality_comparable<KEY_TYPE> and equality_comparable<VALUE_TYPE>)

constexpr bool Stroika::Foundation::Common::KeyValuePair< KEY_TYPE, VALUE_TYPE >::operator== ( const KeyValuePair< KEY_TYPE, VALUE_TYPE > & rhs ) const

constexpr

Define operator== in the obvious way key == key and value == value. This method is only defined if BOTH the key and value have a defined operator==

Definition at line 78 of file KeyValuePair.inl.

◆ operator<=>()

template<typename KEY_TYPE , typename VALUE_TYPE >
requires (three_way_comparable<KEY_TYPE> and three_way_comparable<VALUE_TYPE>)

constexpr auto Stroika::Foundation::Common::KeyValuePair< KEY_TYPE, VALUE_TYPE >::operator<=> ( const KeyValuePair< KEY_TYPE, VALUE_TYPE > & rhs ) const

constexpr

Define operator<=> in the obvious way key <=> key first, and then if equal, compare values. This method is only defined if BOTH the key and value have a defined spaceship operator

Definition at line 72 of file KeyValuePair.inl.