#[unstable(feature = "core",
reason = "pending integer conventions")]
#[inline]
- fn pow(self, mut exp: uint) -> Self {
+ fn pow(self, mut exp: u32) -> Self {
let mut base = self;
let mut acc: Self = Int::one();
+
while exp > 0 {
if (exp & 1) == 1 {
acc = acc * base;
assert_eq!(FromStrRadix::from_str_radix("Z", 35).ok(), None::<$T>);
assert_eq!(FromStrRadix::from_str_radix("-9", 2).ok(), None::<$T>);
}
+
+ #[test]
+ fn test_pow() {
+ let mut r = 2 as $T;
+
+ assert_eq!(r.pow(2u32), 4 as $T);
+ assert_eq!(r.pow(0u32), 1 as $T);
+ r = -2 as $T;
+ assert_eq!(r.pow(2u32), 4 as $T);
+ assert_eq!(r.pow(3u32), -8 as $T);
+ }
}
)}
#[bench]
fn bench_pow_function(b: &mut Bencher) {
let v = (0..1024).collect::<Vec<_>>();
- b.iter(|| {v.iter().fold(0, |old, new| old.pow(*new));});
+ b.iter(|| {v.iter().fold(0, |old, new| old.pow(*new as u32));});
}
}
let messages = range_step(min_depth, max_depth + 1, 2).map(|depth| {
use std::num::Int;
- let iterations = 2.pow((max_depth - depth + min_depth) as usize);
+ let iterations = 2.pow((max_depth - depth + min_depth) as u32);
thread::scoped(move || inner(depth, iterations))
}).collect::<Vec<_>>();