Rollup merge of rust-lang#74552 - fusion-engineering-forks:stabilize-…

…tau, r=dtolnay Stabilize TAU constant. Closes rust-lang#66770.
Manishearth · Jul 20, 2020 · 810d322 · 810d322
2 parents b7357c4 + 5d4147a
commit 810d322
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diff --git a/src/libcore/num/f32.rs b/src/libcore/num/f32.rs
@@ -242,7 +242,7 @@ pub mod consts {
     /// The full circle constant (τ)
     ///
     /// Equal to 2π.
-    #[unstable(feature = "tau_constant", issue = "66770")]
+    #[stable(feature = "tau_constant", since = "1.47.0")]
     pub const TAU: f32 = 6.28318530717958647692528676655900577_f32;
 
     /// π/2

diff --git a/src/libcore/num/f64.rs b/src/libcore/num/f64.rs
@@ -242,7 +242,7 @@ pub mod consts {
     /// The full circle constant (τ)
     ///
     /// Equal to 2π.
-    #[unstable(feature = "tau_constant", issue = "66770")]
+    #[stable(feature = "tau_constant", since = "1.47.0")]
     pub const TAU: f64 = 6.28318530717958647692528676655900577_f64;
 
     /// π/2