Fix compilation with libc++
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@@ -46,8 +46,8 @@ SongIterator makeSongIterator(IteratorT it)
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> Extractor;
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static_assert(
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std::is_convertible<
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typename std::result_of<Extractor(typename IteratorT::reference)>::type,
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SongProperties &
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std::invoke_result_t<Extractor, typename IteratorT::reference>,
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SongProperties &
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>::value, "invalid result type of SongPropertiesExtractor");
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return SongIterator(boost::make_transform_iterator(it, Extractor{}));
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}
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@@ -60,8 +60,8 @@ ConstSongIterator makeConstSongIterator(ConstIteratorT it)
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> Extractor;
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static_assert(
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std::is_convertible<
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typename std::result_of<Extractor(typename ConstIteratorT::reference)>::type,
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const SongProperties &
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std::invoke_result_t<Extractor, typename ConstIteratorT::reference>,
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const SongProperties &
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>::value, "invalid result type of SongPropertiesExtractor");
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return ConstSongIterator(boost::make_transform_iterator(it, Extractor{}));
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}
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