detray::ranges::iota_view< incr_t > Class Template Reference

Range factory that produces a sequence of values. More...

#include <detray/utils/ranges/iota.hpp>

Inheritance diagram for detray::ranges::iota_view< incr_t >:

Collaboration diagram for detray::ranges::iota_view< incr_t >:

Public Types
using	iterator_t = iterator
	Iterator over generated values in the requested sequence.

Public Member Functions
constexpr	iota_view ()=default
	Default constructor (only works if imrementable_t is default constructible).
constexpr	iota_view (incr_t start)
	Construct from just a start value to represent a single value seq.
constexpr	iota_view (incr_t start, incr_t end)
	Construct from a start start and end value.
template<concepts::interval interval_t> requires (!std::same_as<interval_t, iota_view>)
constexpr	iota_view (interval_t &&interval)
	Construct from an interval that defines start and end values.
constexpr auto	begin () const -> iterator_t
constexpr auto	end () const -> iterator_t
constexpr auto	size () const -> incr_t
Public Member Functions inherited from detray::ranges::view_interface< iota_view< incr_t > >
constexpr decltype(auto)	back () const
	Return a reference to the last element.
constexpr auto	data () const
	Return a pointer to the first element, or null for an empty view.
constexpr auto	empty () const -> bool
	Check whether the view contains no elements.
constexpr decltype(auto)	front () const
	Return a reference to the first element.
constexpr	operator bool () const
	Test whether the view contains at least one element.
constexpr decltype(auto)	operator[] (const dindex i) const
	Subscript operator that takes detray dindex.
constexpr auto	size () const
	Return the number of elements in the view.

Detailed Description

template<std::incrementable incr_t>
class detray::ranges::iota_view< incr_t >

Range factory that produces a sequence of values.

See also

https://en.cppreference.com/w/cpp/ranges/iota_view

Template Parameters

incr_t

the incrementable type that makes up the sequence

Note

If given single value, does not do infinite iteration, but only jumps to next value.

Is not fit for lazy evaluation.

Constructor & Destructor Documentation

iota_view() [1/3]

template<std::incrementable incr_t>

template<concepts::interval interval_t>
requires (!std::same_as<interval_t, iota_view>)

detray::ranges::iota_view< incr_t >::iota_view ( interval_t && interval )

explicitconstexpr

Construct from an interval that defines start and end values.

Parameters

interval

half-open interval supplying the sequence bounds

iota_view() [2/3]

template<std::incrementable incr_t>

detray::ranges::iota_view< incr_t >::iota_view ( incr_t start, incr_t end )

constexpr

Construct from a start start and end value.

Parameters

start	first value in the sequence
end	one-past-the-last value in the sequence

iota_view() [3/3]

template<std::incrementable incr_t>

detray::ranges::iota_view< incr_t >::iota_view ( incr_t start )

explicitconstexpr

Construct from just a start value to represent a single value seq.

Parameters

start

sole value in the sequence

Member Function Documentation

begin()

template<std::incrementable incr_t>

auto detray::ranges::iota_view< incr_t >::begin ( ) const->iterator_t

constexpr

Returns

start position of range on container.

end()

template<std::incrementable incr_t>

auto detray::ranges::iota_view< incr_t >::end ( ) const->iterator_t

constexpr

Returns

sentinel of a sequence.

size()

template<std::incrementable incr_t>

auto detray::ranges::iota_view< incr_t >::size ( ) const->incr_t

constexpr

Returns

the span of the sequence