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| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c | 3 |
2 files changed, 10 insertions, 0 deletions
@@ -1,3 +1,10 @@ +2016-02-19 Joseph Myers <joseph@codesourcery.com> + + [BZ #19678] + * sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl): + Ensure +0.0 is returned when taking the next value below the least + positive value. + 2016-02-19 Florian Weimer <fweimer@redhat.com> * sysdeps/generic/malloc-machine.h: Assume mutex_init is always diff --git a/sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c b/sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c index 515aa1e..0d6469d 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c +++ b/sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c @@ -87,6 +87,9 @@ long double __nextafterl(long double x, long double y) math_force_eval (u); /* raise underflow flag */ __set_errno (ERANGE); } + /* Avoid returning -0 in FE_DOWNWARD mode. */ + if (x == 0.0L) + return 0.0L; return x; } /* If the high double is an exact power of two and the low |