src/rbtree_i.h
static inline int
rbtree_d2i(int diff)
{
    return !(diff <= 0);
}
/*
 * Convert the result of a comparison into an index in the children array
 * (0 or 1).
 *
 * This function is mostly used when looking up a node.
 */
Convert the result of a comparison into an index in the children array
(0 or 1).

This function is mostly used when looking up a node.
Convert the result of a comparison into an index in the children array ( 0 or 1 ) . This function is mostly used when looking up a node .
static inline int
rbtree_d2i(int diff)
{
    return !(diff <= 0);
}
static inline int rbtree_d2i ( int diff ) { return ! ( diff <= 0 ) ; }
Convert the result of a comparison into an index in the children array
 (0 or 1).
Convert the result of a comparison into an index in the children array ( 0 or 1 ) .