std::basic_const_iterator<Iter>::operator==,<,<=,>,>=,<=>
| Equality comparison | ||
template< std::sentinel_for<Iter> S > constexpr bool operator==( const S& s ) const; | (1) | (since C++23) |
Relational comparisons between two basic_const_iterators | ||
constexpr bool operator<( const basic_const_iterator& y ) const
requires std::random_access_iterator<Iter>;
| (2) | (since C++23) |
constexpr bool operator>( const basic_const_iterator& y ) const
requires std::random_access_iterator<Iter>;
| (3) | (since C++23) |
constexpr bool operator<=( const basic_const_iterator& y ) const
requires std::random_access_iterator<Iter>;
| (4) | (since C++23) |
constexpr bool operator>=( const basic_const_iterator& y ) const
requires std::random_access_iterator<Iter>;
| (5) | (since C++23) |
constexpr auto operator<=>( const basic_const_iterator& y ) const
requires std::random_access_iterator<Iter> && std::three_way_comparable<Iter>;
| (6) | (since C++23) |
Relational comparisons between basic_const_iterator and another type | ||
template< /*different-from*/<basic_const_iterator> I >
constexpr bool operator<( const I& y ) const
requires std::random_access_iterator<Iter> && std::totally_ordered_with<Iter, I>;
| (7) | (since C++23) |
template< /*different-from*/<basic_const_iterator> I >
constexpr bool operator>( const I& y ) const
requires std::random_access_iterator<Iter> && std::totally_ordered_with<Iter, I>;
| (8) | (since C++23) |
template< /*different-from*/<basic_const_iterator> I >
constexpr bool operator<=( const I& y ) const
requires std::random_access_iterator<Iter> && std::totally_ordered_with<Iter, I>;
| (9) | (since C++23) |
template< /*different-from*/<basic_const_iterator> I >
constexpr bool operator>=( const I& y ) const
requires std::random_access_iterator<Iter> && std::totally_ordered_with<Iter, I>;
| (10) | (since C++23) |
template< /*different-from*/<basic_const_iterator> I >
constexpr auto operator<=>( const I& y ) const
requires std::random_access_iterator<Iter> &&
std::totally_ordered_with<Iter, I> &&
std::three_way_comparable_with<Iter, I>;
| (11) | (since C++23) |
Compares a basic_const_iterator with another value.
The != operator is synthesized from operator==.
I satisfies /*different-from*/<basic_const_iterator> if std::same_as<I, basic_const_iterator<Iter>> is false.
Parameters
| s | - | a sentinel for Iter |
| y | - | a value to compare with |
Return value
1)
base() == s
2)
base() < y.base()
3)
base() > y.base()
4)
base() <= y.base()
5)
base() >= y.base()
6)
base() <=> y.base()
7)
base() < y
8)
base() > y
9)
base() <= y
10)
base() >= y
11)
base() <=> y
Notes
Overload (1) can be used to compare two basic_const_iterator<Iter> values if Iter models sentinel_for<Iter>.
Example
See also
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https://en.cppreference.com/cpp/iterator/basic_const_iterator/operator_cmp
