For convenience, we make two entire copies of the vertex list available: vertex(n..2*n-1) is mapped to vertex(0..n-1), where n == num_vertices().
REQUIRES: 0 <= i < 2 * num_vertices()
See Implementation
For convenience, we make two entire copies of the vertex list available: vertex(n..2*n-1) is mapped to vertex(0..n-1), where n == num_vertices().
REQUIRES: 0 <= i < 2 * num_vertices()