Richard Guenther <richard.guent...@gmail.com> writes: > On Tue, Jun 1, 2010 at 6:58 PM, Ian Lance Taylor <i...@google.com> wrote: >> Richard Guenther <richard.guent...@gmail.com> writes: >> >>> Overall the wiki document looks good. I'd like to disallow >>> >>> * Operators may only be overloaded for types which implement numeric >>> values, where the overloaded operators implement the usual numeric >>> semantics. >>> >>> though. >> >> My thinking here is that it would be reasonable to implement >> real_arithmetic and mpfr/mpc using overloaded operators. I could >> certainly be wrong. > > It will hide the cost which is IMHO not wanted.
I agree that that is the usual problem with overloaded operators. I don't really agree that that is a problem in this specific case. We have to do those operations anyhow. I don't think the ease of writing the code is going to cause us to do extra operations in the target floating point format. Ian
