diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128/e_powl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/e_powl.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128/e_powl.c b/sysdeps/ieee754/ldbl-128/e_powl.c index 6d5b9d52d2..79644f696c 100644 --- a/sysdeps/ieee754/ldbl-128/e_powl.c +++ b/sysdeps/ieee754/ldbl-128/e_powl.c @@ -156,6 +156,13 @@ __ieee754_powl (x, y) if ((iy | q.parts32.w1 | q.parts32.w2 | q.parts32.w3) == 0) return one; + /* 1.0**y = 1; -1.0**+-Inf = 1 */ + if (x == one) + return one; + if (x == -1.0L && iy == 0x7fff0000 + && (q.parts32.w1 | q.parts32.w2 | q.parts32.w3) == 0) + return one; + /* +-NaN return x+y */ if ((ix > 0x7fff0000) || ((ix == 0x7fff0000) |