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

[libm] / src / math / cbrtl.c

diff --git a/src/math/cbrtl.c b/src/math/cbrtl.c
index ecbd7be..d138b9f 100644 (file)
--- a/src/math/cbrtl.c
+++ b/src/math/cbrtl.c
@@ -17,12 +17,12 @@
 
 #include "libm.h"
 
-#if LD64
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
 long double cbrtl(long double x)
 {
        return cbrt(x);
 }
-#elif LD80 || LD128
+#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
 #define BIAS    (LDBL_MAX_EXP - 1)
 static const unsigned
 B1 = 709958130; /* B1 = (127-127.0/3-0.03306235651)*2**23 */