src/etc/test-float-parse/_common.rs

   1 use std::io;
   2 use std::io::prelude::*;
   3 use std::mem::transmute;
   4
   5 // Nothing up my sleeve: Just (PI - 3) in base 16.
   6 #[allow(dead_code)]
   7 pub const SEED: [u32; 3] = [0x243f_6a88, 0x85a3_08d3, 0x1319_8a2e];
   8
   9 pub fn validate(text: &str) {
  10     let mut out = io::stdout();
  11     let x: f64 = text.parse().unwrap();
  12     let f64_bytes: u64 = unsafe { transmute(x) };
  13     let x: f32 = text.parse().unwrap();
  14     let f32_bytes: u32 = unsafe { transmute(x) };
  15     writeln!(&mut out, "{:016x} {:08x} {}", f64_bytes, f32_bytes, text).unwrap();
  16 }