Re: printf "%010a" Inf/NaN and FreeBSD

[Eric Blake]

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According to Bruno Haible on 4/4/2007 6:28 PM:
> On FreeBSD 6.1, printf of "%010a" of Infinity and NaN yields
> "0000000inf" and "0000000nan", respectively.
> 
> While on glibc systems, it yields
> "       inf" and "       nan", respectively.
> 
> I find glibc's output more sensible, since strtod will accept it, while
> strtod will not grok "0000000inf". But FreeBSD appears to be closer to
> the POSIX wording, I won't count it as a FreeBSD bug.

I would, though.  POSIX allows "inf" vs. "infinity", but unless %010f
prints "0000000inf", I don't think %010a should do so either, because
POSIX was clear that "A double argument representing an infinity or NaN
shall be converted in the style of an f or F conversion specifier."

For that matter, I would really like it if you could guarantee that the
digit immediately before the . were less than FLT_RADIX.  POSIX doesn't
require it, but I find it nicer to see 0x1.0p+0 rather than the somewhat
disconcerting 0x8.0p-3.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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