Benchmark using e from consts module

Author: dtolnay

benches/bench.rs

@@ -1,11 +1,6 @@
 // cargo bench
 
 #![feature(test)]
-#![allow(
- clippy::approx_constant,
- clippy::excessive_precision,
- clippy::unreadable_literal
-)]
 
 extern crate test;
 
@@ -54,10 +49,10 @@ macro_rules! benches {
 benches! {
  bench_0_f64(0f64),
  bench_short_f64(0.1234f64),
- bench_e_f64(2.718281828459045f64),
+ bench_e_f64(f64::consts::E),
  bench_max_f64(f64::MAX),
  bench_0_f32(0f32),
  bench_short_f32(0.1234f32),
- bench_e_f32(2.718281828459045f32),
+ bench_e_f32(f32::consts::E),
  bench_max_f32(f32::MAX),
 }