diff options
Diffstat (limited to 'src/math/logbl.c')
| -rw-r--r-- | src/math/logbl.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/src/math/logbl.c b/src/math/logbl.c index 5d04abd7..f3850745 100644 --- a/src/math/logbl.c +++ b/src/math/logbl.c @@ -1,4 +1,3 @@ -#include <limits.h> #include "libm.h" #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024 long double logbl(long double x) @@ -8,12 +7,10 @@ long double logbl(long double x) #else long double logbl(long double x) { - int i = ilogbl(x); - - if (i == FP_ILOGB0) - return -1.0/fabsl(x); - if (i == FP_ILOGBNAN || i == INT_MAX) + if (!isfinite(x)) return x * x; - return i; + if (x == 0) + return -1/(x+0); + return ilogbl(x); } #endif |