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42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
[/
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Copyright 2010 Neil Groves
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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/]
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[section:replace_if replace_if]
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[heading Prototype]
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``
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template<class ForwardRange, class UnaryPredicate, class Value>
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ForwardRange& replace_if(ForwardRange& rng, UnaryPredicate pred, const Value& with_what);
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template<class ForwardRange, class UnaryPredicate, class Value>
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const ForwardRange& replace_if(const ForwardRange& rng, UnaryPredicate pred, const Value& with_what);
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``
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[heading Description]
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`replace_if` replaces every element `x` in `rng` for which `pred(x) == true` with `with_what`. Returns a reference to `rng`.
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[heading Definition]
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Defined in the header file `boost/range/algorithm/replace_if.hpp`
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[heading Requirements]
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* `ForwardRange` is a model of the __forward_range__ Concept.
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* `ForwardRange` is mutable.
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* `UnaryPredicate` is a model of the `PredicateConcept`
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* `ForwardRange`'s value type is convertible to `UnaryPredicate`'s argument type.
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* `Value` is convertible to `ForwardRange`'s value type.
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* `Value` is a model of the `AssignableConcept`.
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[heading Complexity]
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Linear. `replace_if` performs exactly `distance(rng)` applications of `pred`, and at most `distance(rng)` assignments.
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[endsect]
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