[Bug c++/25845] want optional warning for non-constant declarations that could be constant

[sigra at home dot se]

------- Comment #20 from sigra at home dot se  2006-05-13 08:44 -------
I see that the feature I asked for has been implemented in the Ada frontend of
GCC. This program:
with Ada.Text_IO; use Ada.Text_IO;
procedure Prov is
   A : Natural := 0;
begin
   Put_Line ("A =" & A'Img);
end Prov;

compiled with "gnatmake -gnatwa prov" will give the following warning:
prov.adb:3:04: warning: "A" is not modified, could be declared constant

Many thanks for this!

However I have to use other languages as well, especially C++. Therefore I want
the feature there too. You may think that Ada is for serious development while
C++ is just for ugly hacks and therefore does not need the kind of code
checking features that Ada has. But there are still people trying to do serious
development in C++. Why not try to make their work a little mor comfortable
too?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25845