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std::basic_const_iterator<Iter>::operator++,--,+=,-=

constexpr basic_const_iterator& operator++();
 (1) (since C++23) 
constexpr void operator++(int);
 (2) (since C++23) 
constexpr basic_const_iterator operator++(int)
    requires std::forward_iterator<Iter>;
 (3) (since C++23) 
constexpr basic_const_iterator& operator--()
    requires std::bidirectional_iterator<Iter>;
 (4) (since C++23) 
constexpr basic_const_iterator operator--(int)
    requires std::bidirectional_iterator<Iter>;
 (5) (since C++23) 
constexpr basic_const_iterator& operator+=( difference_type n )
    requires std::random_access_iterator<Iter>;
 (6) (since C++23) 
constexpr basic_const_iterator& operator-=( difference_type n )
    requires std::random_access_iterator<Iter>;
 (7) (since C++23)

Increments or decrements the iterator, by applying the corresponding operation on the underlying iterator.

1-3) Increments by one.
4,5) Decrements by one.
6,7) Advances the iterator by n or -n positions respectively.

Return value

1,4,6,7) *this
3,5) A copy of *this that was made before the change
2) (none)

Example

See also

(C++11)
advances or decrements the iterator
(public member function of std::move_iterator<Iter>)

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