std::ranges::cartesian_product_view<First, Vs...>:: iterator <Const>:: operator++,--,+=,-=

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C++
Ranges library
Range adaptors
std::ranges::cartesian_product_view
Member functions
Deduction guides
Iterator
Member functions
cartesian_product_view:: iterator ::operator++
cartesian_product_view:: iterator ::operator++ (int)
cartesian_product_view:: iterator ::operator--
cartesian_product_view:: iterator ::operator-- (int)
cartesian_product_view:: iterator ::operator+=
cartesian_product_view:: iterator ::operator-=
Non-member functions
constexpr /*iterator*/ & operator ++ ( ) ;
(1) (since C++23)
constexpr void operator ++ ( int ) ;
(2) (since C++23)
constexpr /*iterator*/ operator ++ ( int )
requires ranges:: forward_range < /*maybe-const*/ < Const, First >> ;
(3) (since C++23)
constexpr /*iterator*/ & operator -- ( )
requires /*cartesian-product-is-bidirectional*/ < Const, First, Vs... > ;
(4) (since C++23)
constexpr /*iterator*/ operator -- ( int )
requires /*cartesian-product-is-bidirectional*/ < Const, First, Vs... > ;
(5) (since C++23)
constexpr /*iterator*/ & operator + = ( difference_type n )
requires /*cartesian-product-is-random-access*/ < Const, First, Vs... > ;
(6) (since C++23)
constexpr /*iterator*/ & operator - = ( difference_type n )
requires /*cartesian-product-is-random-access*/ < Const, First, Vs... > ;
(7) (since C++23)

Increments or decrements the iterator .

Let current_ denote the underlying tuple of iterators and parent_ denote the underlying pointer to cartesian_product_view .

1) Equivalent to next ( ) ; return * this ;
2) Equivalent to ++* this ;
3) Equivalent to auto tmp = * this ; ++* this ; return tmp ;
4) Equivalent to prev ( ) ; return * this ;
5) Equivalent to auto tmp = * this ; --* this ; return tmp ;
6) Sets the value of * this to ret , where ret is:
  • if n > 0 , the value of * this provided that next been called n times. Otherwise,
  • if n < 0 , the value of * this provided that prev been called - n times. Otherwise,
  • the value of * this before the call.
The behavior is undefined if n is not in the range [ ranges:: distance ( * this, ranges:: begin ( * parent_ ) ) , ranges:: distance ( * this, ranges:: end ( * parent_ ) ) ) .
7) Equivalent to * this + = - n ; return * this ; .

Parameters

n - position relative to current location

Return value

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

Complexity

6) Constant.

Example

This section is incomplete
Reason: no example

See also

(C++23)
performs iterator arithmetic
(function)
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