Type helper for creating strong index types that are type-level distinct from their fundamental types. More...

Inheritance diagram for Scine::Molassembler::Temple::StrongIndex< Tag, T >:

Public Types
using	value_type = T

using	Hash = boost::hash< StrongIndex< Tag, T >>

Public Member Functions
constexpr	StrongIndex ()=default
	Default constructor does not value initialize.

constexpr	StrongIndex (T v)
	Explicit value initialization.

constexpr	StrongIndex (const StrongIndex &other)=default

constexpr	StrongIndex (StrongIndex &&other) noexcept=default

constexpr StrongIndex &	operator= (const StrongIndex &other)=default

constexpr StrongIndex &	operator= (StrongIndex &&other) noexcept=default

constexpr StrongIndex &	operator= (const T &v)
	Assignment from fundamental base type.

constexpr	operator T & () noexcept

constexpr	operator const T & () const noexcept

constexpr auto	tie () const

Public Member Functions inherited from Scine::Molassembler::Temple::Crtp::LexicographicComparable< StrongIndex< Tag, T > >
constexpr bool	operator== (const LexicographicComparable &other) const

constexpr bool	operator!= (const LexicographicComparable &other) const

constexpr bool	operator< (const LexicographicComparable &other) const

constexpr bool	operator<= (const LexicographicComparable &other) const

constexpr bool	operator> (const LexicographicComparable &other) const

constexpr bool	operator>= (const LexicographicComparable &other) const

Additional Inherited Members
Static Public Member Functions inherited from Scine::Molassembler::Temple::Crtp::LexicographicComparable< StrongIndex< Tag, T > >
static constexpr const StrongIndex< Tag, T > &	derived (const LexicographicComparable &base)

Detailed Description

Type helper for creating strong index types that are type-level distinct from their fundamental types.

Template Parameters

Tag	Distinct tag type for each distinct 'type' of tag to avoid interconvertibility
T	Fundamental type of the index

Example: Defining a new strong index type

struct foo_tag;
using Foo = StrongIndex<foo_tag, unsigned>;
Foo foo(4);

Note: This "strong" index type isn't yet as strong as it could be... Implicit base conversion operators aren't great.

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

Public Types