restructure and add documentation

[Mitarbeiter/Tim-Zeitz/stud-rust-base.git] / src / bin / example.rs

diff --git a/src/bin/example.rs b/src/bin/example.rs
new file mode 100644 (file)
index 0000000..775d2ca
--- /dev/null
+++ b/src/bin/example.rs
@@ -0,0 +1,30 @@
+extern crate stud_rust_base;
+
+use stud_rust_base::{
+    types::*,
+    io::*,
+    time::report_time,
+};
+
+use std::{env, path::Path};
+
+fn main() {
+    let mut args = env::args();
+    args.next();
+
+    let arg = &args.next().expect("No directory arg given");
+    let path = Path::new(arg);
+
+    let first_out = Vec::<EdgeId>::load_from(path.join("first_out").to_str().unwrap()).expect("could not read first_out");
+    let head = Vec::<NodeId>::load_from(path.join("head").to_str().unwrap()).expect("could not read head");
+    let travel_time = Vec::<Weight>::load_from(path.join("travel_time").to_str().unwrap()).expect("could not read travel_time");
+
+    report_time("iterating over arcs of some node", || {
+        let node_id = 42;
+        for &edge_id in &head[first_out[node_id] as usize .. first_out[node_id + 1] as usize] {
+            println!("There is an arc from {} to {} with weight {}", node_id, head[edge_id as usize], travel_time[edge_id as usize]);
+        }
+    });
+
+    vec![42; 42].write_to(path.join("distances").to_str().unwrap()).expect("could not write distances");
+}