[uClibc]here's a new version of strtod
Erik Andersen
andersen at codepoet.org
Tue Dec 12 17:27:29 UTC 2000
On Mon Dec 11, 2000 at 05:58:05PM -0600, Manuel Novoa III wrote:
>
> Erik,
>
> Here's an implementation of strtod, along with one support routine.
> Compiling with -Os -fomit-frame-pointer for i386, I get the sizes
> (for all data = 0, bss = 0) for the text section for various selections
> of compile-time options:
>
> 270 current version converted to doubles + 2 bugs fixed
> 227 above, but uses isdigit macro and switch for sign
>
> 219 new strtod (stripped-down) version included below
> 222 above + RESTRICT_EXP (prevents exponent overflow)
> 299 above + WANT_ENDPTR (handles endptr properly)
> 317 above + RESTRICT_DIGITS (smarter mantissa processing)
> 329 above + LOG_SCALING (smarter scaling)
> 389 above + STRTOD_ERRNO (sets errno - needs zoicheck.o)
> 45 zoicheck.o (needed for errno support)
>
> 268 new strtod + RESTRICT_EXP + RESTRICT_DIGITS
> 281 above + LOG_SCALING
>
> What do you think?
This is pretty slick. I like it. :-)
> Also, should these kinds of build options be moved to features.h?
> Or perhaps something like _uClibc.h which is included by features?
So far I have been puttig such things into "Config" in the toplevel directory.
Clearly though, using a "Config.h" would be a good thing for certain types of
options (otherwise the command lines when compiling will get to be 3000 chars
long filled with -DRESTRICT_EXP -DRESTRICT_DIGITS -DLOG_SCALING type stuff)...
Any thoughts on a clean way to do this?
-Erik
--
Erik B. Andersen email: andersen at lineo.com
--This message was written using 73% post-consumer electrons--
More information about the uClibc
mailing list