Hi Nathan,
OK, I'll change my warning level to 4 and fix everything I can. Seems like boost::gil generates quite a few warnings, as well. But that's for later.
Yes, there are some warnings at level 4 which are very often triggered by GIL. Common ones are: conditional expression is constant, assignment operator couldn't be generated due to reference member, and more when compiled in 64-bit. <rant>The second is particularly annoying -- if I wanted to be able to copy-assign, I wouldn't have put a reference member in there!</rant> I tend to suppress those particular warnings as a matter of course -- GIL code would not be improved by hacking around these illegitimate warnings. . .
I should fix those warnings. It's annoying, you are right! Regards, Christian