std::ranges::enumerate_view<V>::iterator<Const>::index
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                    < cpp | ranges | enumerate view | iterator
                    
                                                            
                    |   constexpr difference_type index() const noexcept;  | 
(since C++23) | |
Returns the underlying index pos_ of the current element. Equivalent to: return pos_;.
Parameters
(none)
Example
| This section is incomplete Reason: no example  |