float tests: use assert_biteq in more places

Author: RalfJung

library/coretests/tests/floats/f128.rs

@@ -5,6 +5,8 @@ use core::ops::{Add, Div, Mul, Sub};
 use std::f128::consts;
 use std::num::FpCategory as Fp;
 
+use super::{assert_approx_eq, assert_biteq};
+
 // Note these tolerances make sense around zero, but not for more extreme exponents.
 
 /// Default tolerances. Works for values that should be near precise but not exact. Roughly

library/coretests/tests/floats/f16.rs

@@ -4,6 +4,8 @@
 use std::f16::consts;
 use std::num::FpCategory as Fp;
 
+use super::{assert_approx_eq, assert_biteq};
+
 /// Tolerance for results on the order of 10.0e-2
 #[allow(unused)]
 const TOL_N2: f16 = 0.0001;

library/coretests/tests/floats/f32.rs

@@ -2,6 +2,8 @@ use core::f32;
 use core::f32::consts;
 use core::num::FpCategory as Fp;
 
+use super::{assert_approx_eq, assert_biteq};
+
 /// Smallest number
 const TINY_BITS: u32 = 0x1;
 

library/coretests/tests/floats/f64.rs

@@ -2,6 +2,8 @@ use core::f64;
 use core::f64::consts;
 use core::num::FpCategory as Fp;
 
+use super::{assert_approx_eq, assert_biteq};
+
 /// Smallest number
 const TINY_BITS: u64 = 0x1;