Merge #81

81: Release 0.3.0 r=cuviper a=cuviper



Co-authored-by: Josh Stone <cuviper@gmail.com>

Author: bors[bot]

RELEASES.md

@@ -1,3 +1,30 @@
+# Release 0.3.0 (2020-06-13)
+
+### Enhancements
+
+- [`Ratio` now implements `ToPrimitive`][52].
+- [`Ratio` now implements additional formatting traits][56]:
+  - `Binary`, `Octal`, `LowerHex`, `UpperHex`, `LowerExp`, `UpperExp`
+- [The `Pow` implementations have been expanded][70].
+  - `Pow<BigInt>` and `Pow<BigUint>` are now implemented.
+  - `Pow<_> for &Ratio<T>` now uses `&T: Pow`.
+  - The inherent `pow` method now uses `&T: Pow`.
+
+### Breaking Changes
+
+- [`num-rational` now requires Rust 1.31 or greater][66].
+  - The "i128" opt-in feature was removed, now always available.
+- [The "num-bigint-std" feature replaces "bigint" with `std` enabled][80].
+  - The "num-bigint" feature without `std` uses `alloc` on Rust 1.36+.
+
+**Contributors**: @cuviper, @MattX, @maxbla
+
+[52]: https://github.com/rust-num/num-rational/pull/52
+[56]: https://github.com/rust-num/num-rational/pull/56
+[66]: https://github.com/rust-num/num-rational/pull/66
+[70]: https://github.com/rust-num/num-rational/pull/70
+[80]: https://github.com/rust-num/num-rational/pull/80
+
 # Release 0.2.4 (2020-03-17)
 
 - [Fixed `CheckedDiv` when both dividend and divisor are 0][74].

src/lib.rs

@@ -1006,7 +1006,7 @@ macro_rules! impl_formatting {
     ($fmt_trait:ident, $prefix:expr, $fmt_str:expr, $fmt_alt:expr) => {
         impl<T: $fmt_trait + Clone + Integer> $fmt_trait for Ratio<T> {
             #[cfg(feature = "std")]
-            fn fmt(&self, f: &mut Formatter) -> fmt::Result {
+            fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
                 let pre_pad = if self.denom.is_one() {
                     format!($fmt_str, self.numer)
                 } else {
@@ -1027,7 +1027,7 @@ macro_rules! impl_formatting {
                 f.pad_integral(non_negative, $prefix, pre_pad)
             }
             #[cfg(not(feature = "std"))]
-            fn fmt(&self, f: &mut Formatter) -> fmt::Result {
+            fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
                 let plus = if f.sign_plus() && self.numer >= T::zero() {
                     "+"
                 } else {