From f5d2fceb3eed8908b846a9d4aad47d63252a32f3 Mon Sep 17 00:00:00 2001
From: "erwin.coumans" <erwin.coumans@08e121b0-ae19-0410-a57b-3be3395fd4fd>
Date: Mon, 13 Dec 2010 23:37:25 +0000
Subject: [PATCH] Use resize(0) instead of clear() to optimize the
 btCompoundCollisionAlgorithm See Issue 459, thanks to Peter Messmer

---
 .../CollisionDispatch/btCompoundCollisionAlgorithm.cpp          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/BulletCollision/CollisionDispatch/btCompoundCollisionAlgorithm.cpp b/src/BulletCollision/CollisionDispatch/btCompoundCollisionAlgorithm.cpp
index 1262eefc1..54889a637 100644
--- a/src/BulletCollision/CollisionDispatch/btCompoundCollisionAlgorithm.cpp
+++ b/src/BulletCollision/CollisionDispatch/btCompoundCollisionAlgorithm.cpp
@@ -234,7 +234,7 @@ void btCompoundCollisionAlgorithm::processCollision (btCollisionObject* body0,bt
 						resultOut->setPersistentManifold(0);//??necessary?
 					}
 				}
-				manifoldArray.clear();
+				manifoldArray.resize(0);
 			}
 		}
 	}