diff options
Diffstat (limited to 'sysdeps/ieee754/dbl-64/e_log.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/e_log.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/ieee754/dbl-64/e_log.c b/sysdeps/ieee754/dbl-64/e_log.c index 05d318b786..4ecd3722f5 100644 --- a/sysdeps/ieee754/dbl-64/e_log.c +++ b/sysdeps/ieee754/dbl-64/e_log.c @@ -96,6 +96,10 @@ __ieee754_log (double x) if (__glibc_likely (ABS (w) > U03)) goto case_03; + /* log (1) is +0 in all rounding modes. */ + if (w == 0.0) + return 0.0; + /*--- Stage I, the case abs(x-1) < 0.03 */ t8 = MHALF * w; |