------- 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