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#ifndef MULTITREE_HPP
#define MULTITREE_HPP
#include "trees_impl.hpp"
#include <terraces/bigint.hpp>
namespace terraces {
enum class multitree_node_type {
base_single_leaf,
base_two_leaves,
base_unconstrained,
inner_node,
alternative_array,
unexplored,
};
struct multitree_node;
namespace multitree_nodes {
struct two_leaves {
index_t left_leaf;
index_t right_leaf;
};
struct unconstrained {
index_t* begin;
index_t* end;
index_t num_leaves() const;
};
struct inner_node {
multitree_node* left;
multitree_node* right;
};
struct alternative_array {
multitree_node* begin;
multitree_node* end;
index_t num_alternatives() const;
};
struct unexplored {
index_t* begin;
index_t* end;
index_t num_leaves() const;
};
} // namespace multitree_nodes
struct multitree_node {
multitree_node_type type;
index_t num_leaves;
big_integer num_trees;
union {
index_t single_leaf;
multitree_nodes::two_leaves two_leaves;
multitree_nodes::unconstrained unconstrained;
multitree_nodes::inner_node inner_node;
multitree_nodes::alternative_array alternative_array;
multitree_nodes::unexplored unexplored;
};
};
struct newick_multitree_t {
const multitree_node* root;
const name_map* names;
};
std::ostream& operator<<(std::ostream& stream, newick_multitree_t tree);
inline newick_multitree_t as_newick(const multitree_node* root, const name_map& names) {
return {root, &names};
}
inline index_t multitree_nodes::alternative_array::num_alternatives() const {
return (index_t)(end - begin);
}
inline index_t multitree_nodes::unexplored::num_leaves() const { return (index_t)(end - begin); }
inline index_t multitree_nodes::unconstrained::num_leaves() const { return (index_t)(end - begin); }
} // namespace terraces
#endif // MULTITREE_HPP
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