Range-v3
Range algorithms, views, and actions for the Standard Library
ranges::views::indices_fn Struct Reference

Half-open range of indices: [from, to). More...

#include <range/v3/view/indices.hpp>

+ Inheritance diagram for ranges::views::indices_fn:

Public Member Functions

template<typename Val >
requires integral<Val>
iota_view< Val, Val > operator() (Val from, Val to) const
 
template<typename Val >
requires integral<Val>
iota_view< Val, Val > operator() (Val to) const
 
- Public Member Functions inherited from ranges::iota_view< std::size_t >
constexpr iota_view (meta::id_t< std::size_t > from, meta::id_t< To > to)
 
constexpr iota_view (std::size_t from)
 
- Public Member Functions inherited from ranges::view_facade< iota_view< std::size_t, To >, same_as< To, unreachable_sentinel_t > ? infinite :std::is_integral< std::size_t >::value &&std::is_integral< To >::value ? finite :unknown >
constexpr auto begin () -> detail::facade_iterator_t< D >
 Let d be static_cast<Derived &>(*this). Let b be std::as_const(d).begin_cursor() if that expression is well-formed; otherwise, let b be d.begin_cursor(). Let B be the type of b. More...
 
constexpr auto begin () const -> detail::facade_iterator_t< D const >
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
constexpr auto end () -> detail::facade_sentinel_t< D >
 Let d be static_cast<Derived &>(*this). Let e be std::as_const(d).end_cursor() if that expression is well-formed; otherwise, let e be d.end_cursor(). Let E be the type of e. More...
 
constexpr auto end () const -> detail::facade_sentinel_t< D const >
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
- Public Member Functions inherited from ranges::view_interface< iota_view< std::size_t, To >, Cardinality >
constexpr auto empty () const noexcept -> bool
 Test whether a range can be empty:
 
&&!detail ::has_fixed_size_< Cardinality > &&forward_range< D< True > const > constexpr bool empty () const noexcept(noexcept(bool(ranges::begin(std::declval< D< True > const & >())==ranges::end(std::declval< D< True > const & >()))))
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
&&Cardinality< 0) &&(Cardinality !=infinite) &&(!forward_range< D< True > >) &&sized_range< D< True > > constexpr bool empty() noexcept(noexcept(bool(ranges::size(std::declval< D< True > & >())==0))) { return ranges::size(derived())==0;} template< bool True=true > &&Cardinality< 0) &&(Cardinality !=infinite) &&(!forward_range< D< True > const >) &&sized_range< D< True > const > constexpr bool empty() const noexcept(noexcept(bool(ranges::size(std::declval< D< True > const & >())==0))) { return ranges::size(derived())==0;} template< bool True=true > &&!detail ::has_fixed_size_< Cardinality > &&forward_range< D< True > > constexpr bool empty () noexcept(noexcept(bool(ranges::begin(std::declval< D< True > & >())==ranges::end(std::declval< D< True > & >()))))
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
&&detail::can_empty_< D< True > const > constexpr operator bool () const noexcept(noexcept(ranges::empty(std::declval< D< True > const & >())))
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
&&detail::can_empty_< D< True > > constexpr operator bool () noexcept(noexcept(ranges::empty(std::declval< D< True > & >())))
 
view_interfaceoperator= (view_interface &&)=default
 
view_interfaceoperator= (view_interface const &)=default
 
 view_interface (view_interface &&)=default
 
 view_interface (view_interface const &)=default
 

Related Functions

(Note that these are not member functions.)

constexpr indices_fn indices {}
 

Additional Inherited Members

- Protected Types inherited from ranges::view_interface< iota_view< std::size_t, To >, Cardinality >
using D = meta::invoke< detail::dependent_< B >, iota_view< std::size_t, To > >
 
- Protected Member Functions inherited from ranges::view_facade< iota_view< std::size_t, To >, same_as< To, unreachable_sentinel_t > ? infinite :std::is_integral< std::size_t >::value &&std::is_integral< To >::value ? finite :unknown >
constexpr view_as_cursor begin_cursor () const
 
constexpr default_sentinel_t end_cursor () const
 
- Protected Member Functions inherited from ranges::view_interface< iota_view< std::size_t, To >, Cardinality >
constexpr iota_view< std::size_t, To > const & derived () const noexcept
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
 
constexpr iota_view< std::size_t, To > & derived () noexcept
 
- Protected Attributes inherited from ranges::view_facade< iota_view< std::size_t, To >, same_as< To, unreachable_sentinel_t > ? infinite :std::is_integral< std::size_t >::value &&std::is_integral< To >::value ? finite :unknown >
friend range_access
 

Detailed Description

Half-open range of indices: [from, to).