Merge #5

5: Add the std feature and release 0.1.36 r=cuviper a=cuviper

Fixes #4.

Author: bors[bot]

Cargo.toml

@@ -8,8 +8,13 @@ categories = [ "algorithms", "science" ]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rust-num/num-integer"
 name = "num-integer"
-version = "0.1.35"
+version = "0.1.36"
 readme = "README.md"
 
 [dependencies.num-traits]
-version = "0.1.32"
+version = "0.2.0"
+default-features = false
+
+[features]
+default = ["std"]
+std = []

README.md

@@ -2,6 +2,7 @@
 
 [![crate](https://img.shields.io/crates/v/num-integer.svg)](https://crates.io/crates/num-integer)
 [![documentation](https://docs.rs/num-integer/badge.svg)](https://docs.rs/num-integer)
+![minimum rustc 1.8](https://img.shields.io/badge/rustc-1.8+-red.svg)
 [![Travis status](https://travis-ci.org/rust-num/num-integer.svg?branch=master)](https://travis-ci.org/rust-num/num-integer)
 
 `Integer` trait and functions for Rust.
@@ -21,6 +22,24 @@ and this to your crate root:
 extern crate num_integer;
 ```
 
+## Features
+
+This crate can be used without the standard library (`#![no_std]`) by disabling
+the default `std` feature.  Use this in `Cargo.toml`:
+
+```toml
+[dependencies.num-integer]
+version = "0.1.36"
+default-features = false
+```
+
+There is no functional difference with and without `std` at this time, but
+there may be in the future.
+
+## Releases
+
+Release notes are available in [RELEASES.md](RELEASES.md).
+
 ## Compatibility
 
 The `num-integer` crate is tested for rustc 1.8 and greater.

RELEASES.md

@@ -0,0 +1,21 @@
+# Release 0.1.36
+
+- [num-integer now has its own source repository][num-356] at [rust-num/num-integer][home].
+- [Corrected the argument order documented in `Integer::is_multiple_of`][1]
+- [There is now a `std` feature][5], enabled by default, along with the implication
+  that building *without* this feature makes this a `#[no_std]` crate.
+  - There is no difference in the API at this time.
+
+**Contributors**: @cuviper, @jaystrictor
+
+[home]: https://github.com/rust-num/num-integer
+[num-356]: https://github.com/rust-num/num/pull/356
+[1]: https://github.com/rust-num/num-integer/pull/1
+[5]: https://github.com/rust-num/num-integer/pull/5
+
+
+# Prior releases
+
+No prior release notes were kept.  Thanks all the same to the many
+contributors that have made this crate what it is!
+

ci/test_full.sh

@@ -8,4 +8,6 @@ echo Testing num-integer on rustc ${TRAVIS_RUST_VERSION}
 cargo build --verbose
 cargo test --verbose
 
-# We have no features to test...
+# test `no_std`
+cargo build --verbose --no-default-features
+cargo test --verbose --no-default-features

src/lib.rs

@@ -9,12 +9,21 @@
 // except according to those terms.
 
 //! Integer trait and functions.
+//!
+//! ## Compatibility
+//!
+//! The `num-integer` crate is tested for rustc 1.8 and greater.
 
 #![doc(html_root_url = "https://docs.rs/num-integer/0.1")]
 
+#![cfg_attr(not(feature = "std"), no_std)]
+#[cfg(feature = "std")]
+extern crate core;
+
 extern crate num_traits as traits;
 
-use std::ops::Add;
+use core::ops::Add;
+use core::mem;
 
 use traits::{Num, Signed};
 
@@ -267,7 +276,7 @@ macro_rules! impl_integer_for_isize {
 
                 while m != 0 {
                     m >>= m.trailing_zeros();
-                    if n > m { ::std::mem::swap(&mut n, &mut m) }
+                    if n > m { mem::swap(&mut n, &mut m) }
                     m -= n;
                 }
 
@@ -312,6 +321,7 @@ macro_rules! impl_integer_for_isize {
         #[cfg(test)]
         mod $test_mod {
             use Integer;
+            use core::mem;
 
             /// Checks that the division rule holds for:
             ///
@@ -389,7 +399,7 @@ macro_rules! impl_integer_for_isize {
             fn test_gcd_cmp_with_euclidean() {
                 fn euclidean_gcd(mut m: $T, mut n: $T) -> $T {
                     while m != 0 {
-                        ::std::mem::swap(&mut m, &mut n);
+                        mem::swap(&mut m, &mut n);
                         m %= n;
                     }
 
@@ -526,7 +536,7 @@ macro_rules! impl_integer_for_usize {
 
                 while m != 0 {
                     m >>= m.trailing_zeros();
-                    if n > m { ::std::mem::swap(&mut n, &mut m) }
+                    if n > m { mem::swap(&mut n, &mut m) }
                     m -= n;
                 }
 
@@ -573,6 +583,7 @@ macro_rules! impl_integer_for_usize {
         #[cfg(test)]
         mod $test_mod {
             use Integer;
+            use core::mem;
 
             #[test]
             fn test_div_mod_floor() {
@@ -600,7 +611,7 @@ macro_rules! impl_integer_for_usize {
             fn test_gcd_cmp_with_euclidean() {
                 fn euclidean_gcd(mut m: $T, mut n: $T) -> $T {
                     while m != 0 {
-                        ::std::mem::swap(&mut m, &mut n);
+                        mem::swap(&mut m, &mut n);
                         m %= n;
                     }
                     n
@@ -817,9 +828,10 @@ fn test_iter_binomial() {
     macro_rules! check_simple {
         ($t:ty) => { {
             let n: $t = 3;
-            let c: Vec<_> = IterBinomial::new(n).collect();
-            let expected = vec![1, 3, 3, 1];
-            assert_eq!(c, expected);
+            let expected = [1, 3, 3, 1];
+            for (b, &e) in IterBinomial::new(n).zip(&expected) {
+                assert_eq!(b, e);
+            }
         } }
     }
 
@@ -835,9 +847,8 @@ fn test_iter_binomial() {
     macro_rules! check_binomial {
         ($t:ty, $n:expr) => { {
             let n: $t = $n;
-            let c: Vec<_> = IterBinomial::new(n).collect();
             let mut k: $t = 0;
-            for b in c {
+            for b in IterBinomial::new(n) {
                 assert_eq!(b, binomial(n, k));
                 k += 1;
             }