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