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Empty featureset instead of invalid + bool is_empty(featureset_ptr)

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This commit is contained in:
Artem Pavlenko 2024-10-29 09:52:35 +00:00
parent 20b154ae49
commit c1117a4d33
1 changed files with 5 additions and 5 deletions
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10
include/mapnik/featureset.hpp
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@ -41,21 +41,21 @@ struct MAPNIK_DECL Featureset : private util::noncopyable
virtual ~Featureset() {}
};
struct MAPNIK_DECL invalid_featureset : Featureset
struct MAPNIK_DECL empty_featureset : Featureset
{
feature_ptr next() { return feature_ptr(); }
};
using featureset_ptr = std::shared_ptr<Featureset>;
inline featureset_ptr make_invalid_featureset()
inline featureset_ptr make_empty_featureset()
{
return std::make_shared<invalid_featureset>();
return std::make_shared<empty_featureset>();
}
inline bool is_valid(featureset_ptr const& ptr)
inline bool is_empty(featureset_ptr const& ptr)
{
return (dynamic_cast<invalid_featureset*>(ptr.get()) == nullptr) ? true : false;
return (dynamic_cast<empty_featureset*>(ptr.get()) != nullptr) ? true : false;
}
} // namespace mapnik