use #if LDBL_MANT_DIG == ... instead of custom LD80 etc macros

[libm] / src / math / ilogbl.c

diff --git a/src/math/ilogbl.c b/src/math/ilogbl.c
index 03c8f21..099c81a 100644 (file)
--- a/src/math/ilogbl.c
+++ b/src/math/ilogbl.c
@@ -1,11 +1,11 @@
 #include <limits.h>
 #include "libm.h"
-#if LD64
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
 int ilogbl(long double x)
 {
        return ilogb(x);
 }
-#elif LD80
+#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
 int ilogbl(long double x)
 {
        union ldshape u = {x};