* dim-1, and they must already be part of the complex. Returns the
* index of the added simplex. */
index_type add_simplex(int dim, index_type* faces, value_type value) {
* dim-1, and they must already be part of the complex. Returns the
* index of the added simplex. */
index_type add_simplex(int dim, index_type* faces, value_type value) {