On Sat, Oct 29, 2005 at 03:45:33AM -0700, Per Bothner wrote: > Rather than adding new flags, I'd think I'd prefer: > > 1. Change the behavior (back) so only '\\$', not '\\ *$', causes a > line to be continued. > 2. Make -Wcomment more useful to it only warns when it might matter: > The following line contains non-comment whitespace. > 3. Make -Wcomment the default - not just for -Wall, but always. > It can be turned off with -Wno-comment
Your item #2 was part of my (amended) proposal (the first version had a new warning, it was revised to just fix -Wcomment). #3 would be fine with me. The problem with your item #1 is that there is then no way of flagging code that won't work with the large numbers of production compilers based on gcc 3.x, as well as code that will break if anyone ever removes trailing whitespace (something that can easily happen in the process of editing the code). At minimum, it seems that there has to be a mode, to be compatible with previous gcc releases. Then you're back to the -f flag, and the only argument is about which should be the default (and I'm agnostic on that one).
