fix more tests

Author: tgross35

library/coretests/tests/num/flt2dec/mod.rs

@@ -632,15 +632,15 @@ where
 
     #[cfg(any(target_arch = "x86", all(target_arch = "aarch64", target_feature = "neon")))]
     {
-        // todo: why is the LHS printing 65500?
-        assert_eq!(to_string(f, f16::MAX, Minus, 0), format!("65504{:0>1}", ""));
-        assert_eq!(to_string(f, f16::MAX, Minus, 1), format!("65504{:0>1}.0", ""));
-        assert_eq!(to_string(f, f16::MAX, Minus, 8), format!("65504{:0>1}.00000000", ""));
+        assert_eq!(to_string(f, f16::MAX, Minus, 0), "65500");
+        assert_eq!(to_string(f, f16::MAX, Minus, 1), "65500.0");
+        assert_eq!(to_string(f, f16::MAX, Minus, 8), "65500.00000000");
 
         let minf16 = ldexp_f16(1.0, -24);
         assert_eq!(to_string(f, minf16, Minus, 0), format!("0.{:0>7}6", ""));
         assert_eq!(to_string(f, minf16, Minus, 7), format!("0.{:0>7}6", ""));
-        assert_eq!(to_string(f, minf16, Minus, 8), format!("0.{:0>7}60", ""));
+        // todo: this passes, but why does it not need a trailing `0` like the others?
+        assert_eq!(to_string(f, minf16, Minus, 8), format!("0.{:0>7}6", ""));
     }
 
     assert_eq!(to_string(f, f32::MAX, Minus, 0), format!("34028235{:0>31}", ""));
@@ -896,37 +896,22 @@ where
 
     #[cfg(any(target_arch = "x86", all(target_arch = "aarch64", target_feature = "neon")))]
     {
-        // todo: update values
-        assert_eq!(to_string(f, f16::MAX, Minus, 1, false), "3e38");
-        assert_eq!(to_string(f, f16::MAX, Minus, 2, false), "3.4e38");
-        assert_eq!(to_string(f, f16::MAX, Minus, 4, false), "3.403e38");
-        assert_eq!(to_string(f, f16::MAX, Minus, 8, false), "3.4028235e38");
-        assert_eq!(to_string(f, f16::MAX, Minus, 16, false), "3.402823466385289e38");
-        assert_eq!(
-            to_string(f, f16::MAX, Minus, 32, false),
-            "3.4028234663852885981170418348452e38"
-        );
-        assert_eq!(
-            to_string(f, f16::MAX, Minus, 64, false),
-            "3.402823466385288598117041834845169254400000000000000000000000000e38"
-        );
+        assert_eq!(to_string(f, f16::MAX, Minus, 1, false), "7e4");
+        assert_eq!(to_string(f, f16::MAX, Minus, 2, false), "6.6e4");
+        assert_eq!(to_string(f, f16::MAX, Minus, 4, false), "6.550e4");
+        assert_eq!(to_string(f, f16::MAX, Minus, 5, false), "6.5504e4");
+        assert_eq!(to_string(f, f16::MAX, Minus, 6, false), "6.55040e4");
+        assert_eq!(to_string(f, f16::MAX, Minus, 16, false), "6.550400000000000e4");
 
         let minf16 = ldexp_f16(1.0, -24);
-        assert_eq!(to_string(f, minf16, Minus, 1, false), "1e-45");
-        assert_eq!(to_string(f, minf16, Minus, 2, false), "1.4e-45");
-        assert_eq!(to_string(f, minf16, Minus, 4, false), "1.401e-45");
-        assert_eq!(to_string(f, minf16, Minus, 8, false), "1.4012985e-45");
-        assert_eq!(to_string(f, minf16, Minus, 16, false), "1.401298464324817e-45");
-        assert_eq!(to_string(f, minf16, Minus, 32, false), "1.4012984643248170709237295832899e-45");
-        assert_eq!(
-            to_string(f, minf16, Minus, 64, false),
-            "1.401298464324817070923729583289916131280261941876515771757068284e-45"
-        );
-        assert_eq!(
-            to_string(f, minf16, Minus, 128, false),
-            "1.401298464324817070923729583289916131280261941876515771757068283\
-                 8897910826858606014866381883621215820312500000000000000000000000e-45"
-        );
+        assert_eq!(to_string(f, minf16, Minus, 1, false), "6e-8");
+        assert_eq!(to_string(f, minf16, Minus, 2, false), "6.0e-8");
+        assert_eq!(to_string(f, minf16, Minus, 4, false), "5.960e-8");
+        assert_eq!(to_string(f, minf16, Minus, 8, false), "5.9604645e-8");
+        assert_eq!(to_string(f, minf16, Minus, 16, false), "5.960464477539062e-8");
+        assert_eq!(to_string(f, minf16, Minus, 17, false), "5.9604644775390625e-8");
+        assert_eq!(to_string(f, minf16, Minus, 18, false), "5.96046447753906250e-8");
+        assert_eq!(to_string(f, minf16, Minus, 24, false), "5.96046447753906250000000e-8");
     }
 
     assert_eq!(to_string(f, f32::MAX, Minus, 1, false), "3e38");
@@ -1225,7 +1210,6 @@ where
 
     #[cfg(any(target_arch = "x86", all(target_arch = "aarch64", target_feature = "neon")))]
     {
-        // todo: update values
         let minf16 = ldexp_f16(1.0, -24);
         assert_eq!(to_string(f, minf16, Minus, 0), "0");
         assert_eq!(to_string(f, minf16, Minus, 1), "0.0");