2016 Update

Task/Variables/Ada/variables.ada

@@ -1,7 +1,19 @@
-declare
+Name: declare   -- a local declaration block has an optional name
+   A : constant Integer := 42;  -- Create a constant
    X : String := "Hello"; -- Create and initialize a local variable
-   Y : Integer; -- Create an uninitialized variable
+   Y : Integer;           -- Create an uninitialized variable
    Z : Integer renames Y: -- Rename Y (creates a view)
+   function F (X: Integer) return Integer is
+     -- Inside, all declarations outside are visible when not hidden: X, Y, Z are global with respect to F.
+     X: Integer := Z;  -- hides the outer X which however can be refered to by Name.X
+   begin
+     ...
+   end F;  -- locally declared variables stop to exist here
 begin
    Y := 1; -- Assign variable
-end; -- End of the scope
+   declare
+     X: Float := -42.0E-10;  -- hides the outer X (can be referred to Name.X like in F)
+   begin
+     ...
+   end;
+end Name; -- End of the scope