Function fera_graph::sum_prop
[−]
[src]
pub fn sum_prop<P, K, O, I>(prop: P, iter: I) -> O where
I: IntoIterator,
I::Item: IntoOwned<K>,
P: PropGet<K>,
O: Sum<P::Output>,
Returns the sum of the property values of the iterator's items.
Example
use fera_graph::prelude::*; use fera_graph::sum_prop; let g = CompleteGraph::new(3); let mut w = g.default_vertex_prop(0u32); w[0] = 5; w[1] = 10; w[2] = 4; assert_eq!(19u32, sum_prop(&w, g.vertices())); assert_eq!(0u32, sum_prop(&w, g.vertices().take(0))); assert_eq!(15u32, sum_prop(&w, &[1, 0]));