operator+,-(ranges::zip_transform_view::iterator)
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< cpp | ranges | zip transform view | iterator
friend constexpr /*iterator*/ operator+( const /*iterator*/& i, difference_type n ) requires ranges::random_access_range<Base>; |
(1) | (since C++23) |
friend constexpr /*iterator*/ operator+( difference_type n, const /*iterator*/& i ) requires ranges::random_access_range<Base>; |
(2) | (since C++23) |
friend constexpr /*iterator*/ operator-( const /*iterator*/& i, difference_type n ) requires ranges::random_access_range<Base>; |
(3) | (since C++23) |
friend constexpr difference_type operator-( const /*iterator*/& i, const /*iterator*/& j ) |
(4) | (since C++23) |
Let inner_
denote the underlying iterator.
1,2) Returns the iterator i incremented by n. Equivalent to: return /*iterator*/(*i.parent_, i.inner_ + n);.
3) Returns the iterator
i
decremented by n. Equivalent to: return /*iterator*/(*i.parent_, i.inner_ - n);.4) Calculates the distance between i and j. Equivalent to return i.inner_ - j.inner_;.
This function is not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when zip_transform_view::iterator<Const>
is an associated class of the arguments.
Parameters
i, j | - | the iterators |
n | - | position relative to current location |
Return value
1,2) /*iterator*/{ inner_ + n }
3) /*iterator*/{ inner_ - n }
4) i.inner_ - j.inner_
Example
This section is incomplete Reason: no example |
See also
advances or decrements the underlying iterator (public member function) |