diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | NEWS | 2 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/e_lgammal_r.c | 4 |
3 files changed, 8 insertions, 3 deletions
@@ -1,5 +1,10 @@ 2013-12-22 Joseph Myers <joseph@codesourcery.com> + [BZ #16337] + * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): + Calculate results for small negative arguments directly rather + than using reflection formula with special underflow handling. + * sysdeps/mach/hurd/Implies: Change unix/bsd/bsd4.4 to unix/bsd. * sysdeps/unix/bsd/syscalls.list (chflags): Add entry from sysdeps/unix/bsd/bsd4.4/syscalls.list. @@ -22,7 +22,7 @@ Version 2.19 15966, 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144, 16146, 16150, 16151, 16153, 16167, 16172, 16195, 16214, 16245, 16271, - 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16338, 16356. + 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338, 16356. * The public headers no longer use __unused nor __block. This change is to support compiling programs that are derived from BSD sources and use diff --git a/sysdeps/ieee754/ldbl-128/e_lgammal_r.c b/sysdeps/ieee754/ldbl-128/e_lgammal_r.c index 2b44afb..23ab9b9 100644 --- a/sysdeps/ieee754/ldbl-128/e_lgammal_r.c +++ b/sysdeps/ieee754/ldbl-128/e_lgammal_r.c @@ -782,6 +782,8 @@ __ieee754_lgammal_r (long double x, int *signgamp) *signgamp = -1; else *signgamp = 1; + if (q < 0x1p-120L) + return -__logl (q); z = q - p; if (z > 0.5L) { @@ -789,8 +791,6 @@ __ieee754_lgammal_r (long double x, int *signgamp) z = p - q; } z = q * __sinl (PIL * z); - if (z == 0.0L) - return (*signgamp * huge * huge); w = __ieee754_lgammal_r (q, &i); z = __logl (PIL / z) - w; return (z); |