Class ADT.CritBit.FloatTree

Description

This class implements a CritBit-tree/trie that can be used as a mapping-like data structure. Values of float|int can be used as indices, while any possible type (also mixed) can be stored.

CritBit trees are prefixed based search trees that allow for fast random access as well as prefix and range based lookups. Keys are stored in alphabetical order and can be iterated over using foreach. Other than that, it can be used like mapping(float|int:mixed).

Example

ADT.CritBit.FloatTree tree = ADT.CritBit.FloatTree();
float|int key1 = 12.0;
tree[key1] = ({ 4, 5, 6 });
tree[key1]; // now is ({ 4, 5, 6 })
m_delete(tree, key1); // tree is empty again

Example

ADT.CritBit.FloatTree tree = ADT.CritBit.FloatTree();
array(float|int) a = ({ 80.4, 99.9, 14.2 });
foreach(a; int idx; float|int val) {
tree[val] = idx;
}
foreach(tree; float|int key; mixed val) {
// in here the keys will be reached in order 14.2, 80.4 and 99.9.
}

Example

ADT.CritBit.FloatTree tree = ADT.CritBit.FloatTree();
array(float|int) a = ({ 80.4, 99.9, 14.2 });
foreach (a; int idx; float|int val) {
tree[val] = idx;
}
foreach(ADT.CritBit.FloatTree.Iterator(tree, -1); float|int key; mixed val) {
// in here the keys will be reached in order 99.9, 80.4 and 14.2.
}

See also

ADT.CritBit.FloatTree.Iterator

Method create

ADT.CritBit.FloatTree ADT.CritBit.FloatTree(array|mapping|void o)

Description

Create a FloatTree from o.