3 ms·It's the trigraph ??/ which translates to a \.by cdcarter 12y agoIt's the trigraph ??/ which translates to a \.gizmo686 12y agoThe trigraph appears in the file "test.c". If you look at the compilation command, you will see that that is not the file that is actually compiled.cbsmith 12y agoIf you compile "test.c" you will see that that isn't relevant issue.