diff options
Diffstat (limited to 'sysdeps/ieee754/dbl-64/e_log10.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/e_log10.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/ieee754/dbl-64/e_log10.c b/sysdeps/ieee754/dbl-64/e_log10.c index 8548ee3942..df59d9dce4 100644 --- a/sysdeps/ieee754/dbl-64/e_log10.c +++ b/sysdeps/ieee754/dbl-64/e_log10.c @@ -45,6 +45,7 @@ #include <math.h> #include <math_private.h> +#include <fix-int-fp-convert-zero.h> static const double two54 = 1.80143985094819840000e+16; /* 0x43500000, 0x00000000 */ static const double ivln10 = 4.34294481903251816668e-01; /* 0x3FDBCB7B, 0x1526E50E */ @@ -77,6 +78,8 @@ __ieee754_log10 (double x) i = ((u_int32_t) k & 0x80000000) >> 31; hx = (hx & 0x000fffff) | ((0x3ff - i) << 20); y = (double) (k + i); + if (FIX_INT_FP_CONVERT_ZERO && y == 0.0) + y = 0.0; SET_HIGH_WORD (x, hx); z = y * log10_2lo + ivln10 * __ieee754_log (x); return z + y * log10_2hi; |