>First it's obvious (but hardly anyone ever cares about it) that that such trivial things are still issues just show how much our diff tools are still in the st

>First it's obvious (but hardly anyone ever cares about it) that that such trivial things are still issues just show how much our diff tools are still in the stone age (for a start they should be able to figure out that the two source file: one with the ending and the other without are semantically identical). As long as you (or anyone else) doesn't write any new cooler diffs (though part of what you ask already exists), what they "should do" doesn't matter and doesn't change the fact at all. Actually it reminds me of the "sufficiently smart compiler": http://c2.com/cgi/wiki?SufficientlySmartCompiler http://c2.com/cgi/wiki?SufficientlySmartCompiler