src/avltree_i.h
static inline int
avltree_check_index(int index)
{
    return index == (index & 1);
}
/*
 * Return true if the given index is a valid child index.
 */
Return true if the given index is a valid child index.
Return true if the given index is a valid child index .
static inline int
avltree_check_index(int index)
{
    return index == (index & 1);
}
static inline int avltree_check_index ( int index ) { return index == ( index & 1 ) ; }
Return true if the given index is a valid child index.
Return true if the given index is a valid child index .