On 08/31/2011 05:48 PM, Jim Meyering wrote:
The test-float test is failing on ppc64 with:
gcc version 4.4.4 20100630 (Red Hat 4.4.4-10) (GCC)
(albeit an aging Fedora 12 system)
due to the failure of this assertion:
ASSERT (LDBL_MIN_EXP<= DBL_MIN_EXP);
It fails because of these numbers:
$ :|gcc -dD -E -include stddef.h -|grep -E 'L?DBL_MIN_EXP'
#define __DBL_MIN_EXP__ (-1021)
#define __LDBL_MIN_EXP__ (-968)
It looks like the right test would be
ASSERT (LDBL_MIN_EXP - LDBL_MANT_DIG <= DBL_MIN_EXP - DBL_MANT_DIG);
This would be enough to assert that a double can be assigned to a long
double.
Paolo
