C++11 patchset 9: move hardcoded init parameters to class definitions (part 1) (#5984)

* C++11 patchset 9: move hardcoded init parameters to class definitions

C++11 introduced the possibility to define the default values directly in class definitions, do it on current code

Also remove some unused attributes

* CollisionInfo::bouncy
* collisionMoveResult::collides_xy
* collisionMoveResult::standing_on_unloaded
* Clouds::speed

* More constructor cleanups + some variables removal

* remove only write guiFormSpecMenu::m_old_tooltip
* move header included inside defintions in genericobject.h
* remove some unused since years exception classes
* remove unused & empty debug_stacks_init
* remove unused & empty content_nodemeta_serialize_legacy
* remove forgotten useless bool (bouncy) in collision.cpp code

1 files changed, 2 insertions, 2 deletions

diff --git a/src/database-redis.h b/src/database-redis.h
index fa15dd8a7..1e7909f85 100644
--- a/src/database-redis.h
+++ b/src/database-redis.h
@@ -45,8 +45,8 @@ public:
 	void listAllLoadableBlocks(std::vector<v3s16> &dst);
 
 private:
-	redisContext *ctx;
-	std::string hash;
+	redisContext *ctx = nullptr;
+	std::string hash = "";
 };
 
 #endif // USE_REDIS