[Bug c/35579] [4.1/4.2/4.3/4.4 Regression] casts to void do not silence -Wunused warnings for the case of __attribute__(( warn_unused_result ))

[bonzini at gnu dot org]

------- Comment #6 from bonzini at gnu dot org  2008-10-17 09:14 -------
It seems bad that *explicit* casts to void cannot silence the warning.  This is
a problem for projects using -Werror and using (void) with due diligence
(including GNU coreutils).


-- 

bonzini at gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |4.1.2 4.2.4 4.3.2 4.4.0
      Known to work|                            |4.0.3
            Summary|__attribute__((             |[4.1/4.2/4.3/4.4 Regression]
                   |warn_unused_result )) warns |casts to void do not silence
                   |when it shouldn't, doesn't  |-Wunused warnings for the
                   |warn when it should         |case of __attribute__((
                   |                            |warn_unused_result ))


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35579