24 Iterators library [iterators]

24.4 Iterator primitives [iterator.primitives]

24.4.4 Range iterator operations [range.iter.ops]

24.4.4.5 ranges​::​prev [range.iter.op.prev]

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template<bidirectional_iterator I> constexpr I ranges::prev(I x);
1
#
Effects: Equivalent to: --x; return x;
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template<bidirectional_iterator I> constexpr I ranges::prev(I x, iter_difference_t<I> n);
2
#
Effects: Equivalent to: ranges​::​advance(x, -n); return x;
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template<bidirectional_iterator I> constexpr I ranges::prev(I x, iter_difference_t<I> n, I bound);
3
#
Effects: Equivalent to: ranges​::​advance(x, -n, bound); return x;

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