gf::ArrayRef< T > Class Template Reference

A constant reference to an array and its size. More...

#include <gf/ArrayRef.h>

Public Member Functions
constexpr	ArrayRef ()
	Default constructor. More...
constexpr	ArrayRef (std::nullptr_t)
	Null constructor. More...
constexpr	ArrayRef (const T *data, std::size_t size)
	Constructor from a pointer and a size. More...
	ArrayRef (const std::vector< T > &values)
	Constructor from a std::vector More...
template<std::size_t N>
	ArrayRef (const std::array< T, N > &values)
	Constructor from a std::array More...
template<std::size_t N>
constexpr	ArrayRef (const T(&data)[N])
	Constructor from a static array. More...
constexpr const T *	getData () const noexcept
	Get a pointer to the elements. More...
constexpr std::size_t	getSize () const noexcept
	Get the number of elements. More...
constexpr bool	isEmpty () const noexcept
	Check if the array is empty. More...
constexpr ArrayRef< T >	sub (std::size_t index)
	Create an array starting at a specified index. More...
constexpr const T *	begin () const noexcept
	Get an iterator to the first element. More...
constexpr const T *	end () const noexcept
	Get an iterator past the last element. More...
constexpr const T &	operator[] (std::size_t index) const
	Get an element at a given index. More...

Detailed Description

template<typename T>
class gf::ArrayRef< T >

A constant reference to an array and its size.

This class stores a pointer to some data and its size. It can be built from various inputs: std::vector, static array, pointer and size.

See also

gf::BufferRef, gf::StringRef, gf::array()

Constructor & Destructor Documentation

ArrayRef() [1/6]

template<typename T>

constexpr gf::ArrayRef< T >::ArrayRef ( )

inline

Default constructor.

Data is nullptr and size is 0.

ArrayRef() [2/6]

template<typename T>

constexpr gf::ArrayRef< T >::ArrayRef ( std::nullptr_t  )

inline

Null constructor.

Data is nullptr and size is 0.

ArrayRef() [3/6]

template<typename T>

constexpr gf::ArrayRef< T >::ArrayRef ( const T *  data, std::size_t  size  )

inline

Constructor from a pointer and a size.

Parameters

data	A pointer to the elements in the array
size	The number of elements in the array

ArrayRef() [4/6]

template<typename T>

gf::ArrayRef< T >::ArrayRef ( const std::vector< T > &  values )

inline

Constructor from a std::vector

Parameters

values

The vector of elements

ArrayRef() [5/6]

template<typename T>

template<std::size_t N>

gf::ArrayRef< T >::ArrayRef ( const std::array< T, N > &  values )

inline

Constructor from a std::array

Parameters

values

The array of elements

ArrayRef() [6/6]

template<typename T>

template<std::size_t N>

constexpr gf::ArrayRef< T >::ArrayRef ( const T(&)  data[N] )

inline

Constructor from a static array.

The size is computed at compile-time.

Parameters

data	The static array

Member Function Documentation

begin()

template<typename T>

constexpr const T* gf::ArrayRef< T >::begin ( ) const

inlinenoexcept

Get an iterator to the first element.

Returns

A pointer to the first element

See also

end()

end()

template<typename T>

constexpr const T* gf::ArrayRef< T >::end ( ) const

inlinenoexcept

Get an iterator past the last element.

Returns

A pointer past the last element

See also

begin()

getData()

template<typename T>

constexpr const T* gf::ArrayRef< T >::getData ( ) const

inlinenoexcept

Get a pointer to the elements.

Returns

A pointer to the first element in the array

getSize()

template<typename T>

constexpr std::size_t gf::ArrayRef< T >::getSize ( ) const

inlinenoexcept

Get the number of elements.

Returns

The number of elements in the array

isEmpty()

template<typename T>

constexpr bool gf::ArrayRef< T >::isEmpty ( ) const

inlinenoexcept

Check if the array is empty.

Returns

True if the array has no elements

operator[]()

template<typename T>

constexpr const T& gf::ArrayRef< T >::operator[] ( std::size_t  index ) const

inline

Get an element at a given index.

No verification is done on the index.

Parameters

index

The index of the element

Returns

The element at the given index

sub()

template<typename T>

constexpr ArrayRef<T> gf::ArrayRef< T >::sub ( std::size_t  index )

inline

Create an array starting at a specified index.

Parameters

index

The starting index of the new array

Returns

A sub-array starting at the new index