fixup! float: Add f16 parsing and printing

Author: tgross35

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

@@ -1,5 +1,3 @@
-#![feature(f16)]
-
 mod traits;
 mod ui;
 mod validate;
@@ -116,7 +114,6 @@ pub fn register_tests(cfg: &Config) -> Vec<TestInfo> {
     let mut tests = Vec::new();
 
     // Register normal generators for all floats.
-    register_float::<f16>(&mut tests, cfg);
     register_float::<f32>(&mut tests, cfg);
     register_float::<f64>(&mut tests, cfg);
 

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

@@ -98,7 +98,7 @@ macro_rules! impl_int {
     }
 }
 
-impl_int!(u16, i16; u32, i32; u64, i64);
+impl_int!(u32, i32; u64, i64);
 
 /// Floating point types.
 pub trait Float:
@@ -147,12 +147,12 @@ pub trait Float:
 }
 
 macro_rules! impl_float {
-    ($($fty:ty, $ity:ty);+) => {
+    ($($fty:ty, $ity:ty, $bits:literal);+) => {
         $(
             impl Float for $fty {
                 type Int = $ity;
                 type SInt = <Self::Int as Int>::Signed;
-                const BITS: u32 = <$ity>::BITS;
+                const BITS: u32 = $bits;
                 const MAN_BITS: u32 = Self::MANTISSA_DIGITS - 1;
                 const MAN_MASK: Self::Int = (Self::Int::ONE << Self::MAN_BITS) - Self::Int::ONE;
                 const SIGN_MASK: Self::Int = Self::Int::ONE << (Self::BITS-1);
@@ -168,7 +168,7 @@ macro_rules! impl_float {
     }
 }
 
-impl_float!(f16, u16; f32, u32; f64, u64);
+impl_float!(f32, u32, 32; f64, u64, 64);
 
 /// A test generator. Should provide an iterator that produces unique patterns to parse.
 ///