On Mon, Apr 26, 2004 at 07:33:09AM +0200, Marcus Holland-Moritz wrote: > Looking at the generated assembly code revealed that casting 'double' > to 'unsigned long long' calls __fixunsdfdi(). GCC implements this > function, as does OpenBSD's libc (!). Now, the cool thing is that > casting works as long as you do _not_ link libc to your executable. > I you do (and Perl does), you start getting wrong results for values > larger 2**32:
This rings bells. I'm sure we had the same issue with linking (not linking) libc with tracking down a modf bug on Linux once. But I can't find it in the archives. How garbage is the output? Can it be detected by Configure and worked around? Is it worth it? Nicholas Clark
