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libcore: add num::Int::pow() and deprecate num::pow().

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Signed-off-by: NODA, Kai <nodakai@gmail.com>
This commit is contained in:
NODA, Kai 2014-11-17 22:12:54 +08:00
parent 803aacd5ae
commit 3fcf2840a4
4 changed files with 33 additions and 28 deletions
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6
src/libstd/num/mod.rs
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@ -757,7 +757,7 @@ mod tests {
}
macro_rules! assert_pow(
(($num:expr, $exp:expr) => $expected:expr) => {{
let result = pow($num, $exp);
let result = $num.pow($exp);
assert_eq!(result, $expected);
assert_eq!(result, naive_pow($num, $exp));
}}
@ -775,12 +775,12 @@ mod tests {
mod bench {
extern crate test;
use self::test::Bencher;
use num;
use num::Int;
use prelude::*;
#[bench]
fn bench_pow_function(b: &mut Bencher) {
let v = Vec::from_fn(1024u, |n| n);
b.iter(|| {v.iter().fold(0u, |old, new| num::pow(old, *new));});
b.iter(|| {v.iter().fold(0u, |old, new| old.pow(*new));});
}
}