CMap< Key, Value, Size > Class Template Reference

This class is designed to implement a constexpr version of std::map. The standard library std::map doesn't allow constexpr (and it doesn't look like it will be implemented in the future). This class utilizes std::array and std::pair as they allow constexpr. More...

#include <Map.h>

Public Member Functions
template<typename Iterable >
constexpr	CMap (Iterable begin, Iterable end)
constexpr const Value &	at (const Key &key) const
constexpr auto	find (const Key &key) const
constexpr size_t	size () const
constexpr auto	cbegin () const
constexpr auto	cend () const

Detailed Description

template<typename Key, typename Value, size_t Size>
class CMap< Key, Value, Size >

This class is designed to implement a constexpr version of std::map. The standard library std::map doesn't allow constexpr (and it doesn't look like it will be implemented in the future). This class utilizes std::array and std::pair as they allow constexpr.

When using this class you should use the helper make_map instead of constructing this class directly. For example: constexpr auto myMap = make_map<int, std::string_view>({{1, "one"}});

This class is useful for mapping enum values to strings that can be compile time checked. This also helps with heap usage.

Lookups have linear complexity, so should not be used for "big" maps.

Constructor & Destructor Documentation

CMap()

template<typename Key , typename Value , size_t Size>

template<typename Iterable >

constexpr CMap< Key, Value, Size >::CMap ( Iterable  begin, Iterable  end  )

inline

Todo:

: c++20 can use constexpr assignment operator instead

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

• xbmc/utils/Map.h