diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/s_log1pl.c | 4 |
2 files changed, 8 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog index ceb8333dd1..3025edf83a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2018-01-10 Joseph Myers <joseph@codesourcery.com> + + [BZ #22693] + * sysdeps/ieee754/ldbl-128ibm/s_log1pl.c (__log1pl): Handle + negative arguments in test for NaN or infinity argument. + 2018-01-10 Dmitry V. Levin <ldv@altlinux.org> * po/libc.pot: Regenerate. diff --git a/sysdeps/ieee754/ldbl-128ibm/s_log1pl.c b/sysdeps/ieee754/ldbl-128ibm/s_log1pl.c index 5457892a98..e499c9f604 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_log1pl.c +++ b/sysdeps/ieee754/ldbl-128ibm/s_log1pl.c @@ -131,8 +131,8 @@ __log1pl (long double xm1) /* Test for NaN or infinity input. */ xhi = ldbl_high (xm1); EXTRACT_WORDS (hx, lx, xhi); - if (hx >= 0x7ff00000) - return xm1 + xm1; + if ((hx & 0x7fffffff) >= 0x7ff00000) + return xm1 + xm1 * xm1; /* log1p(+- 0) = +- 0. */ if (((hx & 0x7fffffff) | lx) == 0) |