RB_RED
RB_COLOR(elm, field) = RB_RED; \
RB_COLOR(red, field) = RB_RED; \
RB_COLOR(parent, field) == RB_RED) { \
if (tmp && RB_COLOR(tmp, field) == RB_RED) { \
if (tmp && RB_COLOR(tmp, field) == RB_RED) { \
if (RB_COLOR(tmp, field) == RB_RED) { \
RB_COLOR(tmp, field) = RB_RED; \
RB_COLOR(tmp, field) = RB_RED; \
if (RB_COLOR(tmp, field) == RB_RED) { \
RB_COLOR(tmp, field) = RB_RED; \
RB_COLOR(tmp, field) = RB_RED; \