------- Comment #3 from joseph at codesourcery dot com 2008-06-21 16:58 ------- Subject: Re: cast to long double not taken into account when result stored to a double
On Sat, 21 Jun 2008, rguenth at gcc dot gnu dot org wrote: > It is convert_to_real doing this optimization. convert_to_real is also responsible for the problematic conversions in bug 35202. I didn't try to argue the double rounding issues for those conversions, only the errno issue, since I don't have an example for the double rounding affecting those function call conversions (and right now implementations of many of the functions will not typically be correctly rounding - but that could change if C1x follows the new IEEE 754 revision's recommendation of many more correctly rounded functions). But it is potentially an issue for the conversions of function calls as well as the plain arithmetic example of this bug. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36578
