------- Comment #6 from gerald at pfeifer dot com 2010-05-01 16:39 -------
(In reply to comment #0)
> Consider the following code snippet:
> bash-2.05$ cat foo.cc
> struct X { int y; };
>
> void foo() {
> X c;
> X tmp2;
> X d = tmp2;
> }
>
> Both c and d are unused. However, we only get an 'unused variable' warning
> from c.
A current (2010-04-26) snapshot of GCC 4.6 detects both cases:
y.c: In function 'foo':
y.c:5:5: warning: unused variable 'd' [-Wunused-variable]
y.c:3:5: warning: unused variable 'c' [-Wunused-variable]
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8045