cal::input_iterator_base< Derived, T, Reference > Struct Template Reference

CRTP base type for implementing input iterators. More...

#include <iterator.hpp>

Public Types
typedef std::ptrdiff_t	difference_type
	Difference type.
typedef std::input_iterator_tag	iterator_category
	Iterator category.
typedef auto	pointer
	Pointer type.
typedef Reference	reference
	Reference type.
typedef T	value_type
	Value type.

Public Member Functions
bool	operator!= (const Derived &i) const
	Compares two iterators for inequality.
reference	operator* () const
	Returns the pointed-to object.
Derived &	operator++ (int)
	Increments the iterator and returns the previously pointed-to value.
pointer	operator-> () const
	Member access of the object pointed to by the iterator.
bool	operator== (const Derived &i) const
	Compares two iterators for equality.

Detailed Description

template<class Derived, class T = Derived, class Reference = T&>
struct cal::input_iterator_base< Derived, T, Reference >

CRTP base type for implementing input iterators.

The derived type is should implement the following operations:

bool operator==(const Derived&) const;  // optional
Reference operator*() const;            // optional
Derived& operator++();

• If operator== is not implemented, it defaults to false (every iterator is distinct from each other).
• If operator* is not implemented, it defaults to returning the iterator itself.