Commit Graph

13 Commits

Author SHA1 Message Date
das
8b8557483e Don't compile the gdtoa package's strtoIg.c into libc.
I never got around to making use of it.
2005-01-27 05:44:16 +00:00
das
d515c9d41c Cut out the gordian handling of subnormals by bit fiddling, and
instead use the FPU to convert subnormals to normals.  (NB: Further
simplification is possible, such as using the FPU for the rounding
step.)

This fixes a bug reported by stefanf where long double subnormals in
the Intel 80-bit format would be output with one fewer digit than
necessary when the default precision was used.
2005-01-18 18:44:07 +00:00
das
0bc7903301 Eliminate gdtoa.mk and move its contents to ${MACHINE_ARCH}/Makefile.inc.
The purpose of having a separate file involved an abandoned scheme that
would have kept contrib/gdtoa out of the include path for the rest of libc.
2005-01-15 05:23:58 +00:00
grehan
74fadada7a Updated manh shift constant type to 'ULL' for PPC to fix
shift-too-large compile error

reviewed by: das
2004-01-21 04:51:50 +00:00
das
06e5503ed1 Implement __hdtoa() and __hldtoa() and enable printf() support for %a
and %A, which print floating-point numbers in hexadecimal.
2004-01-18 10:32:49 +00:00
das
3fa98ba928 Fix a bug that caused long double subnormals to be printed
incorrectly on architectures without an explicit normalization
bit (sparc64, powerpc).
2004-01-18 07:53:49 +00:00
ru
2ca5a258fd Replaced an ugly hack to selectively disable warnings
in contributed sources with just a hack made possible
by bsd.sys.mk,v 1.33.  This is better because it just
nulls out the warning flags rather than adding gcc(1)
specific -w option to CFLAGS.
2004-01-11 10:42:47 +00:00
obrien
c8633d5cb9 Add an ulgy hack so that warnings added by non-zero WARNS values won't be
used with the contrib/ gdtoa sources as they aren't WARNS-clean.

Submitted by:	ru
2004-01-10 21:51:48 +00:00
das
502b55c20b Userland spinlocks bad. Sleep locks good.
Use the latter for gdtoa.

Requested by:	deischen (far too long ago)
2003-06-21 08:20:14 +00:00
das
97b1575d61 /strtopx/ s/result/&result/
This is the version I *meant* to commit last week.
2003-04-09 05:58:43 +00:00
das
2d9148b622 Add __ldtoa(), a wrapper around gdtoa() to make it look like dtoa().
In support of this, add some MD macros to assist in converting long
doubles to the format expected by gdtoa().

Reviewed by:	silence on standards@
2003-04-05 22:10:13 +00:00
obrien
eb82103523 Clean up the way gdtoa sources are found.
OK'ed by:	das
2003-03-13 18:55:14 +00:00
das
d02cfc3692 Replace our ancient dtoa/strtod implementation with the gdtoa
package, a more recent, generalized set of routines.  Among the
changes:
- Declare strtof() and strtold() in stdlib.h.
- Add glue to libc to support these routines for all kinds
  of ``long double''.
- Update printf() to reflect the fact that dtoa works slightly
  differently now.

As soon as I see that nothing has blown up, I will kill
src/lib/libc/stdlib/strtod.c.  Soon printf() will be able
to use the new routines to output long doubles without loss
of precision, but numerous bugs in the existing code must
be addressed first.

Reviewed by:	bde (briefly), mike (mentor), obrien
2003-03-12 20:30:00 +00:00