Made our own One+Zero traits so we can use stable rust

Author: tedsta

src/lib.rs

@@ -1,5 +1,3 @@
-#![feature(zero_one)]
-
 #![doc(html_logo_url = "http://www.arrayfire.com/logos/arrayfire_logo_symbol.png",
        html_favicon_url = "http://www.rust-lang.org/favicon.ico",
        html_root_url = "http://arrayfire.com/docs/rust")]
@@ -73,6 +71,7 @@ mod image;
 pub use lapack::{svd, lu, qr, cholesky, solve, solve_lu, inverse, det, rank, norm};
 pub use lapack::{svd_inplace, lu_inplace, qr_inplace, cholesky_inplace};
 mod lapack;
+mod num;
 
 pub use signal::{approx1, approx2};
 pub use signal::{fft, fft2, fft3, ifft, ifft2, ifft3};

src/num.rs

@@ -0,0 +1,33 @@
+pub trait Zero {
+    fn zero() -> Self;
+}
+
+pub trait One {
+    fn one() -> Self;
+}
+
+impl Zero for u8 { fn zero() -> Self { 0 } }
+impl Zero for u16 { fn zero() -> Self { 0 } }
+impl Zero for u32 { fn zero() -> Self { 0 } }
+impl Zero for u64 { fn zero() -> Self { 0 } }
+impl Zero for usize { fn zero() -> Self { 0 } }
+impl Zero for i8 { fn zero() -> Self { 0 } }
+impl Zero for i16 { fn zero() -> Self { 0 } }
+impl Zero for i32 { fn zero() -> Self { 0 } }
+impl Zero for i64 { fn zero() -> Self { 0 } }
+impl Zero for isize { fn zero() -> Self { 0 } }
+impl Zero for f32 { fn zero() -> Self { 0.0 } }
+impl Zero for f64 { fn zero() -> Self { 0.0 } }
+
+impl One for u8 { fn one() -> Self { 1 } }
+impl One for u16 { fn one() -> Self { 1 } }
+impl One for u32 { fn one() -> Self { 1 } }
+impl One for u64 { fn one() -> Self { 1 } }
+impl One for usize { fn one() -> Self { 1 } }
+impl One for i8 { fn one() -> Self { 1 } }
+impl One for i16 { fn one() -> Self { 1 } }
+impl One for i32 { fn one() -> Self { 1 } }
+impl One for i64 { fn one() -> Self { 1 } }
+impl One for isize { fn one() -> Self { 1 } }
+impl One for f32 { fn one() -> Self { 1.0 } }
+impl One for f64 { fn one() -> Self { 1.0 } }

src/seq.rs

@@ -2,7 +2,8 @@ extern crate libc;
 
 use std::fmt;
 use std::default::Default;
-use std::num::{One, Zero};
+
+use num::{One, Zero};
 
 /// Sequences are used for indexing Arrays
 #[derive(Copy, Clone)]