It just removes the warning, which is impossible to get rid of otherwise. This bug has persisted all the way into MSVC 6.0: https://web.archive.org/web/2000051

It just removes the warning, which is impossible to get rid of otherwise. This bug has persisted all the way into MSVC 6.0: https://web.archive.org/web/20000519112833/https://support.microsoft.com/support/kb/articles/Q167/3/55.ASP https://web.archive.org/web/20000519112833/https://support.m... Since the warning is relatively useless we opted to fix C2.EXE so that it is never emitted. It generates a lot of noise during compilation otherwise (if you are using templates).