Indeed, casting to void doesn't have any effect. The variable doesn't become unusable or something like that (no compiler warning or error).
On Tue, Nov 5, 2013 at 7:18 PM, koneu <kone...@googlemail.com> wrote: > Krol, Willem van de wrote: >> Hello, I was reading arg.h, because I want to use it in my program, but I >> couln't figure out why the USED macro was used. Could someone clear >> that up? >> >> Willem > > It's so you don't have to type out (void) whenever you want to cast > something to void without any real effect. >
