Re: renames usage

[John Perry <john.perry@usm.edu>]

No. Assignment copies the object, and changes to the copy don't affect the original, while renaming obtains a reference to the object. This program will illustrate it:

with Ada.Text_IO; use Ada.Text_IO;

procedure Test_Renames is

   S: String := "hello world";
   T: String := S;
   U: String renames S;

begin

   Put_Line(S);

   T(T'First) := 'y';
   Put_Line(S); -- still "hello world"

   U(U'First) := 'y';
   Put_Line(S); -- "yello world"

end Test_Renames;