Function t8_element_get_nca

• Defined in File t8_scheme.h

Function Documentation

void t8_element_get_nca(const t8_scheme_c *scheme, const t8_eclass_t tree_class, const t8_element_t *elem1, const t8_element_t *elem2, t8_element_t *nca)

Compute the nearest common ancestor of two elements.

That is, the element with highest level that still has both given elements as descendants.

Parameters:

• scheme – [in] The scheme of the forest.

• tree_class – [in] The eclass of tree the elements are part of.

• elem1 – [in] The first of the two input elements.

• elem2 – [in] The second of the two input elements.

• nca – [inout] The storage for this element must exist and match the element class of the child. On output the unique nearest common ancestor of elem1 and elem2.