add shortcuts

Author: 9il

source/mir/ndslice/package.d

@@ -448,8 +448,8 @@ unittest
 // relaxed example
 unittest
 {
-    static Slice!(Contiguous, [3], ubyte*) movingWindowByChannel
-    (Slice!(Universal, [3], ubyte*) image, size_t nr, size_t nc, ubyte delegate(Slice!(Universal, [2], ubyte*)) filter)
+    static ContiguousTensor!(3, ubyte) movingWindowByChannel
+    (UniversalTensor!(3, ubyte) image, size_t nr, size_t nc, ubyte delegate(UniversalMatrix!ubyte) filter)
     {
         return image
             .pack!1
@@ -461,7 +461,7 @@ unittest
             .slice;
     }
 
-    static T median(Range, T)(Slice!(Universal, [2], Range) sl, T[] buf)
+    static T median(Iterator, T)(Slice!(Universal, [2], Iterator) sl, T[] buf)
     {
         import std.algorithm.sorting : topN;
         // copy sl to the buffer

source/mir/ndslice/slice.d

@@ -109,6 +109,27 @@ See_also:
 +/
 alias Contiguous = SliceKind.contiguous;
 
+/++
+Definition shortcuts for $(LREF Slice).
+
+See_also: $(LREF SliceKind).
++/
+alias ContiguousVector(T) = ContiguousTensor!(1, T);
+/// ditto
+alias UniversalVector (T) = UniversalTensor !(1, T);
+/// ditto
+alias ContiguousMatrix(T) = ContiguousTensor!(2, T);
+/// ditto
+alias CanonicalMatrix (T) = CanonicalTensor !(2, T);
+/// ditto
+alias UniversalMatrix (T) = UniversalTensor !(2, T);
+/// ditto
+alias ContiguousTensor(size_t dim, T) = Slice!(Contiguous, [dim], T*);
+/// ditto
+alias CanonicalTensor (size_t dim, T) = Slice!(Canonical , [dim], T*);
+/// ditto
+alias UniversalTensor (size_t dim, T) = Slice!(Universal , [dim], T*);
+
 /// Extracts $(LREF SliceKind).
 enum kindOf(T : Slice!(kind, packs, Iterator), SliceKind kind, size_t[] packs, Iterator) = kind;