1 files changed, 6 insertions, 8 deletions
diff --git a/src/math/logbf.c b/src/math/logbf.c
index 934827f8..950d3569 100644
--- a/src/math/logbf.c
+++ b/src/math/logbf.c
@@ -1,12 +1,10 @@
-#include <limits.h>
 #include "libm.h"
 
-float logbf(float x) {
-	int i = ilogbf(x);
-
-	if (i == FP_ILOGB0)
-		return -1.0f/fabsf(x);
-	if (i == FP_ILOGBNAN || i == INT_MAX)
+float logbf(float x)
+{
+	if (!isfinite(x))
 		return x * x;
-	return i;
+	if (x == 0)
+		return -1/(x+0);
+	return ilogbf(x);
 }