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-rw-r--r--stdlib/strtod_l.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/stdlib/strtod_l.c b/stdlib/strtod_l.c
index 5b41e2b06e..8f60653fb0 100644
--- a/stdlib/strtod_l.c
+++ b/stdlib/strtod_l.c
@@ -42,11 +42,10 @@ extern unsigned long long int ____strtoull_l_internal (const char *, char **,
 # define SET_MANTISSA(flt, mant) \
   do { union ieee754_double u;						      \
        u.d = (flt);							      \
-       if ((mant & 0xfffffffffffffULL) == 0)				      \
-	 mant = 0x8000000000000ULL;					      \
-       u.ieee.mantissa0 = ((mant) >> 32) & 0xfffff;			      \
-       u.ieee.mantissa1 = (mant) & 0xffffffff;				      \
-       (flt) = u.d;							      \
+       u.ieee_nan.mantissa0 = (mant) >> 32;				      \
+       u.ieee_nan.mantissa1 = (mant);					      \
+       if ((u.ieee.mantissa0 | u.ieee.mantissa1) != 0)			      \
+	 (flt) = u.d;							      \
   } while (0)
 #endif
 /* End of configuration part.  */