diff options
Diffstat (limited to 'math/test-misc.c')
| -rw-r--r-- | math/test-misc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/math/test-misc.c b/math/test-misc.c index a1ad6885db..14fe38b90a 100644 --- a/math/test-misc.c +++ b/math/test-misc.c @@ -1235,7 +1235,12 @@ main (void) } #endif -#if !defined NO_LONG_DOUBLE && LDBL_MANT_DIG >= DBL_MANT_DIG + 4 +/* Skip testing IBM long double format, for 2 reasons: + 1) it only supports FE_TONEAREST + 2) nextafter (0.0, 1.0) == nextafterl (0.0L, 1.0L), so + nextafter (0.0, 1.0) / 16.0L will be 0.0L. */ +#if !defined NO_LONG_DOUBLE && LDBL_MANT_DIG >= DBL_MANT_DIG + 4 \ + && LDBL_MANT_DIG != 106 int oldmode = fegetround (); int j; for (j = 0; j < 4; j++) |