75 lines
2.5 KiB
Plaintext
75 lines
2.5 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:find_first_of find_first_of]
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[heading Prototype]
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``
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template<class SinglePassRange1, class ForwardRange2>
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typename range_iterator<SinglePassRange1>::type
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find_first_of(SinglePassRange1& rng1, const ForwardRange2& rng2);
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template<
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class SinglePassRange1,
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class ForwardRange2,
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class BinaryPredicate
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>
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typename range_iterator<SinglePassRange1>::type
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find_first_of(SinglePassRange1& rng1, const ForwardRange2& rng2, BinaryPredicate pred);
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template<
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range_return_value re,
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class SinglePassRange1,
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class ForwardRange2
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>
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typename range_return<SinglePassRange1, re>::type
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find_first_of(SinglePassRange1& rng1, const ForwardRange2& rng2);
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template<
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range_return_value re,
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class SinglePassRange1,
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class ForwardRange2,
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class BinaryPredicate
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>
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typename range_return<SinglePassRange1, re>::type
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find_first_of(SinglePassRange1& rng1, const ForwardRange2& rng2, BinaryPredicate pred);
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``
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[heading Description]
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The versions of `find_first_of` that return an iterator, return an iterator to the first occurrence in `rng1` of any of the elements in `rng2`.
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Equality is determined by `operator==` for non-predicate versions of `find_first_of`, and by satisfying `pred` in the predicate versions.
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The versions of `find_first_of` that return a `range_return`, defines `found` in the same manner as the returned iterator described above.
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[heading Definition]
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Defined in the header file `boost/range/algorithm/find_first_of.hpp`
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[heading Requirements]
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[*For the non-predicate versions:]
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* `SinglePassRange1` is a model of the __single_pass_range__ Concept.
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* `ForwardRange2` is a model of the __forward_range__ Concept.
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* `SinglePassRange1`'s value type is a model of the `EqualityComparableConcept`, and can be compared for equality with `ForwardRange2`'s value type.
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[*For the predicate versions:]
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* `SinglePassRange1` is a model of the __single_pass_range__ Concept.
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* `ForwardRange2` is a model of the __forward_range__ Concept.
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* `BinaryPredicate` is a model of the `BinaryPredicateConcept`.
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* `SinglePassRange1`'s value type is convertible to `BinaryPredicate`'s first argument type.
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* `ForwardRange2`'s value type is convertible to `BinaryPredicate`'s second argument type.
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[heading Complexity]
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At most `distance(rng1) * distance(rng2)` comparisons.
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[endsect]
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