Rework features

mikedilger · May 4, 2020 · 8bb2406 · 8bb2406
1 parent 005115f
commit 8bb2406
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Showing 2 changed files with 6 additions and 7 deletions.
diff --git a/Cargo.toml b/Cargo.toml
@@ -18,7 +18,9 @@ doctest = true
 doc = true
 
 [features]
-default = [ "num-traits" ]
+default = [ "ratio" ]
+ratio = [ "num-traits" ]
+std = [ ]
 
 [dependencies]
 num-traits = { version = "0.2", default-features = false, optional = true }
diff --git a/src/lib.rs b/src/lib.rs
@@ -170,10 +170,7 @@
 //!
 //! [https://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/](https://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/)
 
-#![no_std]
-
-#[cfg(feature="num-traits")]
-extern crate num_traits;
+#![cfg_attr(not(feature = "std"), no_std)]
 
 #[macro_use]
 mod macros;
@@ -187,7 +184,7 @@ pub use self::ulps_eq::ApproxEqUlps;
 mod eq;
 pub use self::eq::{ApproxEq, F32Margin, F64Margin};
 
-#[cfg(feature="num-traits")]
+#[cfg(feature="ratio")]
 mod ratio;
-#[cfg(feature="num-traits")]
+#[cfg(feature="ratio")]
 pub use self::ratio::ApproxEqRatio;