On Thu, May 22, 2014 at 07:36:24PM +0000, Regan, Brian (EPC COE) wrote: > Don't misunderstand - I like the behaviour. I don't want the unnecessary implicit conversions). > > My concern stems only from the compliance to the standard. Some of our > internal software standards require ISO99 compliance, as do standards > imposed by our customers (e.g. Boeing via their D6). I don't understand why you think it is not a strict standard compliance. The C99 standard doesn't say what helper function should be called to perform the comparison, or what hardware instruction should be used, and programs overriding those helper functions (if used) is not conforming, because they are using names reserved for the implementation. And, as a conforming program can't observe the difference between casting the float variable to double and performing comparison in double vs. not extending the float variable and performing comparison in float, there is no deviation from the standard. Jakub
