It's remarkably non-trivial to say what "used" mean for this
attribute when your intention is to silence the warning.
Works:
do { if (func ()); } while (0);
func () || 0;
func () ? 0 : 1;
func () == 0;
!func ();
Does not work:
(void)func ();
func () || 1;
func () ? 1 : 1;
(void)(0 + func ());
(Assuming the result type is something that can be treated as a
boolean value. Apart from full structures that should be ok.)
Since this is probably compiler version dependent, we might need
a G_NO_REALLY_I_DONT_WANT_TO_USE_IT macro.
Morten
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