CVS log for src/sys/arch/x86/include/ieee.h

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use sized types

protect against multiple inclusion

sync with head

Sync with HEAD

Sync with HEAD (-D20101022).

sync with head

Commit SoC long double support from Stathis Kamperis

Pull up following revision(s) (requested by manu in ticket #607):
	lib/libc/arch/i386/gen/isnanl.c: revision 1.6
	lib/libc/gdtoa/gdtoa.c: revision 1.2-1.3
	lib/libc/arch/x86_64/gen/isnanl.c: revision 1.6
	lib/libc/gdtoa/gdtoaimp.h: revision 1.6
	sys/arch/m68k/include/ieee.h: revision 1.13
	usr.bin/xlint/lint1/scan.l: revision 1.36-1.37
	lib/libc/stdio/snprintf_ss.c: revision 1.4
	lib/libc/arch/i386/gen/isfinitel.c: revision 1.2
	lib/libc/stdio/vfscanf.c: revision 1.38
	sys/arch/sparc/include/ieee.h: revision 1.11-1.12
	lib/libc/gdtoa/dtoa.c: revision 1.4
	lib/libc/stdio/Makefile.inc: revision 1.35
	lib/libc/stdio/fvwrite.c: revision 1.17
	lib/libc/arch/m68k/gen/fpclassifyl.c: revision 1.2
	lib/libc/arch/i386/gen/isinfl.c: revision 1.6
	lib/libc/arch/x86_64/gen/isinfl.c: revision 1.6
	lib/libc/arch/x86_64/gen/isfinitel.c: revision 1.2
	lib/libc/stdio/vfprintf.c: revision 1.55-1.57
	lib/libc/stdio/vsnprintf_ss.c: revision 1.3
	lib/libc/stdio/vfwprintf.c: revision 1.10
	sys/arch/x86/include/ieee.h: revision 1.10
	lib/libc/gdtoa/dmisc.c: revision 1.3
	lib/libc/gdtoa/Makefile.inc: revision 1.5
	sys/arch/hppa/include/ieee.h: revision 1.10
	lib/libc/arch/x86_64/gen/fpclassifyl.c: revision 1.3
	lib/libc/arch/i386/gen/fpclassifyl.c: revision 1.2
	sys/sys/ieee754.h: revision 1.7
	lib/libc/gdtoa/gdtoa.h: revision 1.7
	include/stdio.h: revision 1.67-1.68
	lib/libc/gdtoa/hdtoa.c: revision 1.1-1.4
	lib/libc/gdtoa/ldtoa.c: revision 1.1-1.4
defined(_NETBSD_SOURCE) is equivalent to (!defined(_ANSI_SOURCE) &&
!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)), so there's no
need to check both of them.
Fix for issue reported in PR lib/35401 as well as related overflow bugs.
deal with hex doubles.
Instead of abusing stdio to get a signal-safe version of sprintf, provide one.
remove __SAFE
add long double and hex double support from freebsd.
make this compile.
add new prototypes.
add the new files to the build. Note I am not bumping libc now, because
these are not used yet.
Merge the int bit with the high fraction bit. Add constants/macros
needed by gdtoa.
add constants used by gdtoa
since the int bit is merged, do the explicit math.
ext_int bit is no more.
ext_int bit is no more.
- merge change from freebsd
- add support for building as vfprintf.c
- XXX: we strdup to simplify the freeing logic. This should be fixed for
  efficiency in the vfprintf case.
use vfwprintf.c
enable wide doubles.
some int -> size_t
deal with sparc64 that has 112 bits of mantissa.
make extended precision gdtoa friendly.
int/size_t changes
make this gdtoa friendly.
remove dup definition
use dtoa() instead of returning empty when we don't have extended precision
information.
Fix previous, add forgotten pointer dereference in the call to dtoa().
Add a cheesy workaround marked XXX for the situation where the
strtod() implementation available in the environment does not
handle hex floats.
Discussed with and suggested by christos
From Christos:  gdtoa fixes for m68k.  M68k ports should build now, but
printing extended precision is a little off.
vax does not have <machine/ieee.h> or long double
It would be nice if the compiler provided something like __IEEE_MATH__
bring in FreeBSD's vfscanf() to gain multi-byte/collation support.
Unfortunately it is too difficult to make vfwscanf and this share
the same code like I did with printf, because for string parsing
the code is too different.

sync with head.

Sync with HEAD.

Merge the int bit with the high fraction bit. Add constants/macros
needed by gdtoa.

Sync with HEAD. Here we go again...

sync with -current

Pull up revision 1.9 (requested by kleink in ticket #163):
Push back the descriptions of NaN formats, and descriptions of the
distinction between signalling NaNs and quiet NaNs back into the
machine-dependent headers; treat the implementation of __nanf in the
same spirit.
IEEE 754 leaves the distinction between signalling NaNs and quiet NANs
to the implementation, and unlike our headers used to suggest they're
not identical in the interpretation of the fraction's MSb; in due
course, make those of hppa, mips, sh3, and sh5 reflect reality.

Push back the descriptions of NaN formats, and descriptions of the
distinction between signalling NaNs and quiet NaNs back into the
machine-dependent headers; treat the implementation of __nanf in the
same spirit.

IEEE 754 leaves the distinction between signalling NaNs and quiet NANs
to the implementation, and unlike our headers used to suggest they're
not identical in the interpretation of the fraction's MSb; in due
course, make those of hppa, mips, sh3, and sh5 reflect reality.

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

Err, rename some members added in previous to make them reflect their
semantics better.

For convenient use in libc, add unions of the C floating types and their
corresponding structure definitions.

Correct the position of the QUIETNAN bit.

Use <sys/ieee754.h> where applicable.

Reflect the explicit integer bit here as well.

Make ieee_ext match reality, and add a note about its ABI-specific
tail padding.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

Move some files out of i386 into x86, so that they can be shared with
other ports.