* Return color of node p, or BLACK if p is null * (In the CLR version, they use * a special dummy `nil' node for such purposes, but that doesn't * work well here, since it could lead to creating one such special * node per real node.) *
See Implementation
* Return color of node p, or BLACK if p is null * (In the CLR version, they use * a special dummy `nil' node for such purposes, but that doesn't * work well here, since it could lead to creating one such special * node per real node.) *