Update f128 tests

Author: tgross35

library/std/src/f128/tests.rs

@@ -431,8 +431,8 @@ fn test_powi() {
     let inf: f128 = f128::INFINITY;
     let neg_inf: f128 = f128::NEG_INFINITY;
     assert_eq!(1.0f128.powi(1), 1.0);
-    assert_approx_eq!((-3.1f128).powi(2), 9.61, TOL_0);
-    assert_approx_eq!(5.9f128.powi(-2), 0.028727, TOL_N2);
+    assert_approx_eq!((-3.1f128).powi(2), 9.6100000000000005506706202140776519387, TOL_0);
+    assert_approx_eq!(5.9f128.powi(-2), 0.028727377190462507313100483690639638451, TOL_N2);
     assert_eq!(8.3f128.powi(0), 1.0);
     assert!(nan.powi(2).is_nan());
     assert_eq!(inf.powi(3), inf);
@@ -445,10 +445,10 @@ fn test_powf() {
     let inf: f128 = f128::INFINITY;
     let neg_inf: f128 = f128::NEG_INFINITY;
     assert_eq!(1.0f128.powf(1.0), 1.0);
-    assert_approx_eq!(3.4f128.powf(4.5), 246.408183, TOL_P2);
-    assert_approx_eq!(2.7f128.powf(-3.2), 0.041652, TOL_N2);
-    assert_approx_eq!((-3.1f128).powf(2.0), 9.61, TOL_P2);
-    assert_approx_eq!(5.9f128.powf(-2.0), 0.028727, TOL_N2);
+    assert_approx_eq!(3.4f128.powf(4.5), 246.40818323761892815995637964326426756, TOL_P2);
+    assert_approx_eq!(2.7f128.powf(-3.2), 0.041652009108526178281070304373500889273, TOL_N2);
+    assert_approx_eq!((-3.1f128).powf(2.0), 9.61000000000000055067062021407765193876 TOL_P2);
+    assert_approx_eq!(5.9f128.powf(-2.0), 0.028727377190462507313100483690639638451, TOL_N2);
     assert_eq!(8.3f128.powf(0.0), 1.0);
     assert!(nan.powf(2.0).is_nan());
     assert_eq!(inf.powf(2.0), inf);
@@ -469,8 +469,8 @@ fn test_sqrt_domain() {
 #[test]
 fn test_exp() {
     assert_eq!(1.0, 0.0f128.exp());
-    assert_approx_eq!(2.718282, 1.0f128.exp(), TOL_0);
-    assert_approx_eq!(148.413159, 5.0f128.exp(), TOL_0);
+    assert_approx_eq!(consts::E, 1.0f128.exp(), TOL_0);
+    assert_approx_eq!(148.41315910257660342111558004055227962348775, 5.0f128.exp(), TOL_0);
 
     let inf: f128 = f128::INFINITY;
     let neg_inf: f128 = f128::NEG_INFINITY;
@@ -505,7 +505,7 @@ fn test_ln() {
     assert!((-2.3f128).ln().is_nan());
     assert_eq!((-0.0f128).ln(), neg_inf);
     assert_eq!(0.0f128.ln(), neg_inf);
-    assert_approx_eq!(4.0f128.ln(), 1.386294, TOL_0);
+    assert_approx_eq!(4.0f128.ln(), 1.3862943611198906188344642429163531366, TOL_0);
 }
 
 #[test]
@@ -531,9 +531,9 @@ fn test_log2() {
     let nan: f128 = f128::NAN;
     let inf: f128 = f128::INFINITY;
     let neg_inf: f128 = f128::NEG_INFINITY;
-    assert_approx_eq!(10.0f128.log2(), 3.321928, TOL_0);
-    assert_approx_eq!(2.3f128.log2(), 1.201634, TOL_0);
-    assert_approx_eq!(1.0f128.exp().log2(), 1.442695, TOL_0);
+    assert_approx_eq!(10.0f128.log2(), 3.32192809488736234787031942948939017, TOL_0);
+    assert_approx_eq!(2.3f128.log2(), 1.2016338611696504130002982471978765921, TOL_0);
+    assert_approx_eq!(1.0f128.exp().log2(), 1.4426950408889634073599246810018921381, TOL_0);
     assert!(nan.log2().is_nan());
     assert_eq!(inf.log2(), inf);
     assert!(neg_inf.log2().is_nan());
@@ -548,8 +548,8 @@ fn test_log10() {
     let inf: f128 = f128::INFINITY;
     let neg_inf: f128 = f128::NEG_INFINITY;
     assert_eq!(10.0f128.log10(), 1.0);
-    assert_approx_eq!(2.3f128.log10(), 0.361728, TOL_0);
-    assert_approx_eq!(1.0f128.exp().log10(), 0.434294, TOL_0);
+    assert_approx_eq!(2.3f128.log10(), 0.36172783601759284532595218865859309898, TOL_0);
+    assert_approx_eq!(1.0f128.exp().log10(), 0.43429448190325182765112891891660508222, TOL_0);
     assert_eq!(1.0f128.log10(), 0.0);
     assert!(nan.log10().is_nan());
     assert_eq!(inf.log10(), inf);
@@ -566,7 +566,7 @@ fn test_to_degrees() {
     let inf: f128 = f128::INFINITY;
     let neg_inf: f128 = f128::NEG_INFINITY;
     assert_eq!(0.0f128.to_degrees(), 0.0);
-    assert_approx_eq!((-5.8f128).to_degrees(), -332.315521, TOL_P2);
+    assert_approx_eq!((-5.8f128).to_degrees(), -332.31552117587745090765431723855668471, TOL_P2);
     assert_approx_eq!(pi.to_degrees(), 180.0, TOL_P2);
     assert!(nan.to_degrees().is_nan());
     assert_eq!(inf.to_degrees(), inf);
@@ -581,8 +581,8 @@ fn test_to_radians() {
     let inf: f128 = f128::INFINITY;
     let neg_inf: f128 = f128::NEG_INFINITY;
     assert_eq!(0.0f128.to_radians(), 0.0);
-    assert_approx_eq!(154.6f128.to_radians(), 2.698279, TOL_0);
-    assert_approx_eq!((-332.31f128).to_radians(), -5.799903, TOL_0);
+    assert_approx_eq!(154.6f128.to_radians(), 2.6982790235832334267135442069489767804, TOL_0);
+    assert_approx_eq!((-332.31f128).to_radians(), -5.7999036373023566567593094812182763013, TOL_0);
     // check approx rather than exact because round trip for pi doesn't fall on an exactly
     // representable value (unlike `f32` and `f64`).
     assert_approx_eq!(180.0f128.to_radians(), pi, TOL_0);
@@ -609,7 +609,7 @@ fn test_asinh() {
     // regression test for the catastrophic cancellation fixed in 72486
     assert_approx_eq!(
         (-67452098.07139316f128).asinh(),
-        -18.72007542627454439398548429400083,
+        -18.720075426274544393985484294000831757220,
         TOL_0
     );