2 #![allow(non_camel_case_types)]
8 fn plus(&self) -> isize;
13 impl plus for usize { fn plus(&self) -> isize { *self as isize + 20 } }
18 impl plus for String { fn plus(&self) -> isize { 200 } }
22 fn str(&self) -> String;
23 fn multi<F>(&self, f: F) where F: FnMut(usize);
26 impl uint_utils for usize {
27 fn str(&self) -> String {
30 fn multi<F>(&self, mut f: F) where F: FnMut(usize) {
32 while c < *self { f(c); c += 1_usize; }
37 fn length_(&self, ) -> usize;
38 fn iter_<F>(&self, f: F) where F: FnMut(&T);
39 fn map_<U, F>(&self, f: F) -> Vec<U> where F: FnMut(&T) -> U;
42 impl<T> vec_utils<T> for Vec<T> {
43 fn length_(&self) -> usize { self.len() }
44 fn iter_<F>(&self, mut f: F) where F: FnMut(&T) { for x in self { f(x); } }
45 fn map_<U, F>(&self, mut f: F) -> Vec<U> where F: FnMut(&T) -> U {
46 let mut r = Vec::new();
55 assert_eq!(10_usize.plus(), 30);
56 assert_eq!(("hi".to_string()).plus(), 200);
58 assert_eq!((vec![1]).length_().str(), "1".to_string());
59 let vect = vec![3, 4].map_(|a| *a + 4);
60 assert_eq!(vect[0], 7);
61 let vect = (vec![3, 4]).map_::<usize, _>(|a| *a as usize + 4_usize);
62 assert_eq!(vect[0], 7_usize);
64 10_usize.multi(|_n| x += 2_usize );
65 assert_eq!(x, 20_usize);