* lib/float.in.h (_gl_LDBL_MAX): Renamed from gl_LDBL_MAX.
(_gl_LDBL_TRUE_MIN): Renamed from gl_LDBL_TRUE_MIN.
(_gl_FLT_SNAN): Renamed from gl_FLT_SNAN.
(_gl_DBL_SNAN): Renamed from gl_DBL_SNAN.
(_gl_LDBL_SNAN): Renamed from gl_LDBL_SNAN.
* lib/float.c: Update.
This is in response to the GCC developers;
see <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120993>.
* lib/float.c (gl_LDBL_MAX): Remove the implementation for PowerPC,
as it should no longer be needed.
* lib/float.in.h (LDBL_MIN_EXP, LDBL_MIN_10_EXP, LDBL_MIN)
(LDBL_MAX, LDBL_EPSILON, LDBL_NORM_MAX): On PowerPC with IBM long
double, simplify by using the GCC 15 values unconditionally.
These are the correct values according to the GCC developers
and there seems little point to disagreeing with current GCC
about obsolescent arithmetic that is so problematic in practice.
* tests/test-float-h.c (test_long_double): Relax tests of LDBL_MAX
when !LDBL_IS_IEC_60559, as the tests would now fail on PowerPC and
they were not portable in that case anyway.
Also, fix a too-low LDBL_MAX on this platform, a problem that
contributed to LDBL_NORM_MAX test failures with C23 PowerPC GCC
with ibmlongdouble.
* lib/float.c (gl_LDBL_MAX): On PowerPC with ibmlongdouble, the
correct value is 2**1024 - 2**918, not 2**1024 - 2**971. Also,
use C99 hex double notation for the divisor, as it’s clearer and
should work nowadays.
* lib/float.in.h: Simplify by not worring whether it’s AIX or
GNU/Linux when redefining LDBL_* macros on PowerPC GCC with
ibmlongdouble, as the problem seems to be universal then.
(LDBL_NORM_MAX): On PowerPC GCC with ibmlongdouble, define to be
LDBL_MAX, so that it’s 2**1024 - 2**918, doubling GCC’s value
if supplied.
* modules/float-h-tests (Depends-on): Remove floorl, ldexpl.
Add truncl.
(test_float_h_LDADD): Likewise for libraries.
* tests/test-float-h.c (test_isfinitel): New static function,
so that we need not rely on isfinitel.
(normalize_long_double): Work even if X is negative or not finite.
Do not rely on frexpl or ldexpl. Use truncl instead of floorl
so that the negative results are consistent with positive.
Defend against fritzy PowerPC long double arithmetic.
* build-aux/gendocs.sh (version):
* doc/gendocs_template:
* doc/gendocs_template_min:
* doc/gnulib.texi:
* lib/version-etc.c (COPYRIGHT_YEAR):
Update copyright dates by hand in templates and the like.
* all files: Run 'make update-copyright'.
* build-aux/gendocs.sh (version):
* doc/gendocs_template:
* doc/gendocs_template_min:
* doc/gnulib.texi:
* lib/version-etc.c (COPYRIGHT_YEAR):
Update copyright dates by hand in templates and the like.
* all files: Run 'make update-copyright'.
* m4/float_h.m4 (gl_FLOAT_H): Set FLOAT_H and REPLACE_FLOAT_LDBL also
on Linux/PowerPC.
* lib/float.in.h (LDBL_MAX): Redefine also on Linux/PowerPC.
* lib/float.c (gl_LDBL_MAX): Also define on Linux/PowerPC.
* doc/posix-headers/float.texi: Mention Linux/PowerPC as an affected
platform.
Reported by Andreas Metzler <ametzler@downhill.at.eu.org>.
Bruno Haible