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extern crate typenum; // 2.12.0
fn main() {
let v = 12.046623229980468750000000000000_f32;
let a = a(v);
let b = b(v);
println!("std powi {:.30?}", a);
println!("typenum {:.30?}", b);
}
#[inline(never)]
fn a(v: f32) -> f32 {
v.powi(3)
}
#[inline(never)]
fn b(v: f32) -> f32 {
typenum::Pow::powi(v, typenum::P3::new())
}/d/Code/Test/rust/tst (master)$ cargo run; rustc --version
Compiling tst v0.1.0 (D:\Code\Test\rust\tst)
Finished dev [unoptimized + debuginfo] target(s) in 3.90s
Running `target\debug\tst.exe`
std powi 1748.219482421875000000000000000000
typenum 1748.219482421875000000000000000000
rustc 1.44.0 (49cae5576 2020-06-01)
/d/Code/Test/rust/tst (master)$ cargo +beta run; rustc +beta --version
Finished dev [unoptimized + debuginfo] target(s) in 2.79s
Running `target\debug\tst.exe`
std powi 1748.219604492187500000000000000000
typenum 1748.219482421875000000000000000000
rustc 1.45.0-beta.3359 (b7dc83a3f 2020-06-03)
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