Merge pull request #156 from bluss/t

Add .t(), shorthand for a transposed view.

Author: bluss

src/impl_methods.rs

@@ -904,6 +904,14 @@ impl<A, S, D> ArrayBase<S, D> where S: Data<Elem=A>, D: Dimension
         self
     }
 
+    /// Return a transposed view of the array.
+    ///
+    /// This is a shorthand for `self.view().reversed_axes()`.
+    ///
+    /// See also the more general methods `.reversed_axes()` and `.swap_axes()`.
+    pub fn t(&self) -> ArrayView<A, D> {
+        self.view().reversed_axes()
+    }
 
     /// Return a slice of the array’s backing data in memory order.
     ///

tests/array.rs

@@ -931,4 +931,17 @@ fn test_contiguous() {
     v.swap_axes(1, 2);
     assert!(!v.is_standard_layout());
     assert!(v.as_slice_memory_order().is_some());
+
+    let a = OwnedArray::<f32, _>::zeros((20, 1));
+    let b = OwnedArray::<f32, _>::zeros_f((20, 1));
+    assert!(a.as_slice().is_some());
+    assert!(b.as_slice().is_some());
+    assert!(a.as_slice_memory_order().is_some());
+    assert!(b.as_slice_memory_order().is_some());
+    let a = a.t();
+    let b = b.t();
+    assert!(a.as_slice().is_some());
+    assert!(b.as_slice().is_some());
+    assert!(a.as_slice_memory_order().is_some());
+    assert!(b.as_slice_memory_order().is_some());
 }