29 Numerics library [numerics]

29.8 Generalized numeric operations [numeric.ops]

29.8.12 Iota [numeric.iota]

template <class ForwardIterator, class T> void iota(ForwardIterator first, ForwardIterator last, T value);

1
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Requires: T shall be convertible to ForwardIterator's value type. The expression ++val, where val has type T, shall be well formed.

2
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Effects: For each element referred to by the iterator i in the range [first, last), assigns *i = value and increments value as if by ++value.

3
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Complexity: Exactly last - first increments and assignments.