Introduce HashQ<> and UnorderedMap<>

Invading into std:: is frowned upon, even though legitimate from the C++ standard perspective. Given that it's possible to pass a hash object to unordered_map, it only takes an alias for std::unordered_map to avoid having to specialize std::hash. And besides, a generic compatibility bridge between qHash and std::hash has been long needed.

std::hash<QString> in converters.h remains for now; it will be dropped separately when the API files get regenerated to use UnorderedMap.

1 files changed, 0 insertions, 10 deletions

diff --git a/lib/events/stateevent.h b/lib/events/stateevent.h
index 74e36e74..710b4271 100644
--- a/lib/events/stateevent.h
+++ b/lib/events/stateevent.h
@@ -129,13 +129,3 @@ private:
     std::unique_ptr<Prev<ContentT>> _prev;
 };
 } // namespace Quotient
-
-namespace std {
-template <>
-struct hash<Quotient::StateEventKey> {
-    size_t operator()(const Quotient::StateEventKey& k) const Q_DECL_NOEXCEPT
-    {
-        return qHash(k);
-    }
-};
-} // namespace std