Don't re-export FloatCore

This avoids breaking `use num_traits::*`.

src/float.rs

@@ -1565,7 +1565,7 @@ mod tests {
 
     #[test]
     fn convert_deg_rad() {
-        use FloatCore;
+        use float::FloatCore;
 
         for &(deg, rad) in &DEG_RAD_PAIRS {
             assert!((FloatCore::to_degrees(rad) - deg).abs() < 1e-6);

src/lib.rs

@@ -26,8 +26,8 @@ use core::fmt;
 pub use bounds::Bounded;
 #[cfg(feature = "std")]
 pub use float::Float;
-pub use float::{FloatCore, FloatConst};
-// pub use real::Real; // NOTE: Don't do this, it breaks `use num_traits::*;`.
+pub use float::FloatConst;
+// pub use real::{FloatCore, Real}; // NOTE: Don't do this, it breaks `use num_traits::*;`.
 pub use identities::{Zero, One, zero, one};
 pub use ops::checked::{CheckedAdd, CheckedSub, CheckedMul, CheckedDiv, CheckedShl, CheckedShr};
 pub use ops::wrapping::{WrappingAdd, WrappingMul, WrappingSub};

src/sign.rs

@@ -124,7 +124,7 @@ macro_rules! signed_float_impl {
             /// - `NAN` if the number is NaN
             #[inline]
             fn signum(&self) -> $t {
-                use FloatCore;
+                use float::FloatCore;
                 FloatCore::signum(*self)
             }