Merge rust-num#65

65: Upgrade to Rand 0.7 r=cuviper a=vks

This bumps the MSRV to 1.32 for the `rand` feature.

`SmallRng` is not used for the tests anymore, since enabling the corresponding
feature would force other crates to use the feature as well.

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

Author: 3 people

.travis.yml

@@ -1,10 +1,8 @@
 language: rust
 sudo: false
 rust:
-  - 1.15.0
-  - 1.22.0 # rand
-  - 1.26.0 # has_i128
   - 1.31.0 # 2018!
+  - 1.32.0 # rand
   - stable
   - beta
   - nightly
@@ -20,7 +18,7 @@ matrix:
       before_script:
         - rustup target add $TARGET
       script:
-        - cargo build --verbose --target $TARGET --no-default-features --features i128,rand,serde
+        - cargo build --verbose --target $TARGET --no-default-features --features rand,serde
     - name: "rustfmt"
       rust: 1.31.0
       before_script:

Cargo.toml

@@ -10,7 +10,6 @@ name = "num-complex"
 repository = "https://github.com/rust-num/num-complex"
 version = "0.3.0-pre"
 readme = "README.md"
-build = "build.rs"
 exclude = ["/ci/*", "/.travis.yml", "/bors.toml"]
 publish = false
 
@@ -22,6 +21,7 @@ features = ["std", "serde", "rand"]
 [dependencies.num-traits]
 version = "0.2.11"
 default-features = false
+features = ["i128"]
 
 [dependencies.serde]
 optional = true
@@ -30,13 +30,9 @@ default-features = false
 
 [dependencies.rand]
 optional = true
-version = "0.5"
+version = "0.7"
 default-features = false
 
 [features]
 default = ["std"]
-i128 = ["num-traits/i128"]
 std = ["num-traits/std"]
-
-[build-dependencies]
-autocfg = "1"

README.md

@@ -2,7 +2,7 @@
 
 [![crate](https://img.shields.io/crates/v/num-complex.svg)](https://crates.io/crates/num-complex)
 [![documentation](https://docs.rs/num-complex/badge.svg)](https://docs.rs/num-complex)
-![minimum rustc 1.15](https://img.shields.io/badge/rustc-1.15+-red.svg)
+![minimum rustc 1.31](https://img.shields.io/badge/rustc-1.31+-red.svg)
 [![Travis status](https://travis-ci.org/rust-num/num-complex.svg?branch=master)](https://travis-ci.org/rust-num/num-complex)
 
 `Complex` numbers for Rust.
@@ -13,7 +13,7 @@ Add this to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-num-complex = "0.2"
+num-complex = "0.3"
 ```
 
 and this to your crate root:
@@ -29,22 +29,18 @@ the default `std` feature. Use this in `Cargo.toml`:
 
 ```toml
 [dependencies.num-complex]
-version = "0.2"
+version = "0.3"
 default-features = false
 ```
 
 Features based on `Float` types are only available when `std` is enabled. Where
 possible, `FloatCore` is used instead.  Formatting complex numbers only supports
 format width when `std` is enabled.
 
-Implementations for `i128` and `u128` are only available with Rust 1.26 and
-later.  The build script automatically detects this, but you can make it
-mandatory by enabling the `i128` crate feature.
-
 ## Releases
 
 Release notes are available in [RELEASES.md](RELEASES.md).
 
 ## Compatibility
 
-The `num-complex` crate is tested for rustc 1.15 and greater.
+The `num-complex` crate is tested for rustc 1.31 and greater.

build.rs

@@ -5,7 +5,7 @@
 set -ex
 
 export TRAVIS_RUST_VERSION
-for TRAVIS_RUST_VERSION in 1.15.0 1.22.0 1.26.0 stable beta nightly; do
+for TRAVIS_RUST_VERSION in 1.31.0 1.32.0 stable beta nightly; do
     run="rustup run $TRAVIS_RUST_VERSION"
     $run cargo build --verbose
     $run $PWD/ci/test_full.sh

ci/rustup.sh

@@ -4,13 +4,10 @@ set -ex
 
 echo Testing num-complex on rustc ${TRAVIS_RUST_VERSION}
 
-FEATURES="std serde"
-if [[ "$TRAVIS_RUST_VERSION" =~ ^(nightly|beta|stable|1.26.0|1.22.0)$ ]]; then
-  FEATURES="$FEATURES rand"
-fi
-if [[ "$TRAVIS_RUST_VERSION" =~ ^(nightly|beta|stable|1.26.0)$ ]]; then
-  FEATURES="$FEATURES i128"
-fi
+case "$TRAVIS_RUST_VERSION" in
+  1.31.*) FEATURES="serde" ;;
+  *) FEATURES="serde rand" ;;
+esac
 
 # num-complex should build and test everywhere.
 cargo build --verbose
@@ -29,3 +26,7 @@ done
 # test all supported features together
 cargo build --features="$FEATURES"
 cargo test --features="$FEATURES"
+
+# test all supported features together with std
+cargo build --features="std $FEATURES"
+cargo test --features="std $FEATURES"

ci/test_full.sh

@@ -22,9 +22,7 @@ impl<T: ToPrimitive + Num> ToPrimitive for Complex<T> {
     impl_to_primitive!(i16, to_i16);
     impl_to_primitive!(i32, to_i32);
     impl_to_primitive!(i64, to_i64);
-    #[cfg(has_i128)]
     impl_to_primitive!(u128, to_u128);
-    #[cfg(has_i128)]
     impl_to_primitive!(i128, to_i128);
     impl_to_primitive!(f32, to_f32);
     impl_to_primitive!(f64, to_f64);
@@ -53,9 +51,7 @@ impl<T: FromPrimitive + Num> FromPrimitive for Complex<T> {
     impl_from_primitive!(i16, from_i16);
     impl_from_primitive!(i32, from_i32);
     impl_from_primitive!(i64, from_i64);
-    #[cfg(has_i128)]
     impl_from_primitive!(u128, from_u128);
-    #[cfg(has_i128)]
     impl_from_primitive!(i128, from_i128);
     impl_from_primitive!(f32, from_f32);
     impl_from_primitive!(f64, from_f64);

src/cast.rs

@@ -42,8 +42,8 @@ where
 }
 
 #[cfg(test)]
-fn test_rng() -> SmallRng {
-    SmallRng::from_seed([42; 16])
+fn test_rng() -> StdRng {
+    StdRng::from_seed([42; 32])
 }
 
 #[test]

src/crand.rs

@@ -12,9 +12,9 @@
 //!
 //! ## Compatibility
 //!
-//! The `num-complex` crate is tested for rustc 1.15 and greater.
+//! The `num-complex` crate is tested for rustc 1.31 and greater.
 
-#![doc(html_root_url = "https://docs.rs/num-complex/0.2")]
+#![doc(html_root_url = "https://docs.rs/num-complex/0.3")]
 #![no_std]
 
 #[cfg(any(test, feature = "std"))]
@@ -93,19 +93,11 @@ pub type Complex32 = Complex<f32>;
 pub type Complex64 = Complex<f64>;
 
 impl<T> Complex<T> {
-    #[cfg(has_const_fn)]
     /// Create a new Complex
     #[inline]
     pub const fn new(re: T, im: T) -> Self {
         Complex { re: re, im: im }
     }
-
-    #[cfg(not(has_const_fn))]
-    /// Create a new Complex
-    #[inline]
-    pub fn new(re: T, im: T) -> Self {
-        Complex { re: re, im: im }
-    }
 }
 
 impl<T: Clone + Num> Complex<T> {
@@ -1086,9 +1078,6 @@ impl<T: Clone + Num> Rem<T> for Complex<T> {
     }
 }
 
-#[cfg(not(has_i128))]
-real_arithmetic!(usize, u8, u16, u32, u64, isize, i8, i16, i32, i64, f32, f64);
-#[cfg(has_i128)]
 real_arithmetic!(usize, u8, u16, u32, u64, u128, isize, i8, i16, i32, i64, i128, f32, f64);
 
 /* constants */
@@ -2650,7 +2639,6 @@ mod test {
         assert!(c.is_one());
     }
 
-    #[cfg(has_const_fn)]
     #[test]
     fn test_const() {
         const R: f64 = 12.3;

src/lib.rs

@@ -76,7 +76,6 @@ pow_impl!(u16, i16);
 pow_impl!(u32, i32);
 pow_impl!(u64, i64);
 pow_impl!(usize, isize);
-#[cfg(has_i128)]
 pow_impl!(u128, i128);
 
 // Note: we can't add `impl<T: Float> Pow<T> for Complex<T>` because new blanket impls are a