Add notice about using new consts in new code on float modules

src/libcore/num/f32.rs

@@ -4,6 +4,9 @@
 //! *[See also the `f32` primitive type](../../std/primitive.f32.html).*
 //!
 //! Mathematically significant numbers are provided in the `consts` sub-module.
+//!
+//! Although using these constants won’t cause compilation warnings,
+//! new code should use the associated constants directly on the primitive type.
 
 #![stable(feature = "rust1", since = "1.0.0")]
 

src/libcore/num/f64.rs

@@ -4,6 +4,9 @@
 //! *[See also the `f64` primitive type](../../std/primitive.f64.html).*
 //!
 //! Mathematically significant numbers are provided in the `consts` sub-module.
+//!
+//! Although using these constants won’t cause compilation warnings,
+//! new code should use the associated constants directly on the primitive type.
 
 #![stable(feature = "rust1", since = "1.0.0")]
 

src/libstd/f32.rs

@@ -4,6 +4,9 @@
 //! *[See also the `f32` primitive type](../../std/primitive.f32.html).*
 //!
 //! Mathematically significant numbers are provided in the `consts` sub-module.
+//!
+//! Although using these constants won’t cause compilation warnings,
+//! new code should use the associated constants directly on the primitive type.
 
 #![stable(feature = "rust1", since = "1.0.0")]
 #![allow(missing_docs)]

src/libstd/f64.rs

@@ -4,6 +4,9 @@
 //! *[See also the `f64` primitive type](../../std/primitive.f64.html).*
 //!
 //! Mathematically significant numbers are provided in the `consts` sub-module.
+//!
+//! Although using these constants won’t cause compilation warnings,
+//! new code should use the associated constants directly on the primitive type.
 
 #![stable(feature = "rust1", since = "1.0.0")]
 #![allow(missing_docs)]

src/libstd/primitive_docs.rs

@@ -771,7 +771,7 @@ mod prim_tuple {}
 #[doc(primitive = "f32")]
 /// The 32-bit floating point type.
 ///
-/// *[See also the `std::f32` module](f32/index.html).*
+/// *[See also the `std::f32::consts` module](f32/consts/index.html).*
 ///
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_f32 {}
@@ -780,7 +780,7 @@ mod prim_f32 {}
 //
 /// The 64-bit floating point type.
 ///
-/// *[See also the `std::f64` module](f64/index.html).*
+/// *[See also the `std::f64::consts` module](f64/consts/index.html).*
 ///
 #[stable(feature = "rust1", since = "1.0.0")]
 mod prim_f64 {}