diff options
Diffstat (limited to 'libm/s_finite.c')
| -rw-r--r-- | libm/s_finite.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libm/s_finite.c b/libm/s_finite.c index 50fc11b50..9bbc00286 100644 --- a/libm/s_finite.c +++ b/libm/s_finite.c @@ -22,8 +22,11 @@ int __finite(double x) { - int32_t hx; - GET_HIGH_WORD(hx,x); - return (int)((u_int32_t)((hx&0x7fffffff)-0x7ff00000)>>31); + u_int32_t hx; + + GET_HIGH_WORD(hx, x); + /* Finite numbers have at least one zero bit in exponent. */ + /* All other numbers will result in 0xffffffff after OR: */ + return (hx | 0x800fffff) != 0xffffffff; } libm_hidden_def(__finite) |