public SWIGTYPE_p_btOverlappingPairCache getPairCache()
{
IntPtr cPtr = BulletCollisionPINVOKE.btCollisionWorld_getPairCache(swigCPtr);
SWIGTYPE_p_btOverlappingPairCache ret = (cPtr == IntPtr.Zero) ? null : new SWIGTYPE_p_btOverlappingPairCache(cPtr, false);
return ret;
}