Class PatternPointerEquality

docopt_private.h:59–68

Utility to use 'hash' as the equality operator as well in std containers

	// Utility to use 'hash' as the equality operator as well in std containers
	struct PatternPointerEquality {
		template <typename P1, typename P2>
		bool operator()(std::shared_ptr<P1> const& p1, std::shared_ptr<P2> const& p2) const {
			return p1->hash()==p2->hash();
		}
		template <typename P1, typename P2>
		bool operator()(P1 const* p1, P2 const* p2) const {
			return p1->hash()==p2->hash();
		}
	};

	// A hash-set that uniques by hash value
	using UniquePatternSet = std::unordered_set<std::shared_ptr<Pattern>, PatternHasher, PatternPointerEquality>;