On Wed, 15 Aug 2018, Martin Sebor wrote: > Detecting some of these bugs without too much noise would require > moving the warning out of the front-end and to some later point > after VRP has run.
But you need the information about whether the conversion was explicit or implicit. If someone does abs ((int) unsigned_var) it's presumably intentional and should not receive a warning. If they do abs (unsigned_var) it's suspect. If they do abs (long_var) it's entirely possible they know the long value is within range for int, but it came from some API that produces long. -- Joseph S. Myers jos...@codesourcery.com
