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authorThomas Schwinge <thomas@codesourcery.com>2013-05-23 18:00:10 +0200
committerThomas Schwinge <thomas@codesourcery.com>2013-08-29 12:22:10 +0200
commit0007fc9bdd1d9efcd52d07837f2cd085b5a8f58b (patch)
treeb3c86dbee5b95c24a8413be634ae11318ceb2f8e /sysdeps/ieee754/ldbl-64-128
parentf1cc4c8654b6bc431273286d3562942c50975caf (diff)
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[BZ #15522] strtod ("nan(N)") returning a sNaN in some cases
Diffstat (limited to 'sysdeps/ieee754/ldbl-64-128')
-rw-r--r--sysdeps/ieee754/ldbl-64-128/strtold_l.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/sysdeps/ieee754/ldbl-64-128/strtold_l.c b/sysdeps/ieee754/ldbl-64-128/strtold_l.c
index 8182b2bcd0..e9b33f2d80 100644
--- a/sysdeps/ieee754/ldbl-64-128/strtold_l.c
+++ b/sysdeps/ieee754/ldbl-64-128/strtold_l.c
@@ -44,11 +44,13 @@ libc_hidden_proto (STRTOF)
 #define SET_MANTISSA(flt, mant) \
   do { union ieee854_long_double u;					      \
        u.d = (flt);							      \
-       u.ieee.mantissa0 = 0x8000;					      \
-       u.ieee.mantissa1 = 0;						      \
-       u.ieee.mantissa2 = ((mant) >> 32);	      			      \
-       u.ieee.mantissa3 = (mant) & 0xffffffff;				      \
-       (flt) = u.d;							      \
+       u.ieee_nan.mantissa0 = 0;					      \
+       u.ieee_nan.mantissa1 = 0;					      \
+       u.ieee_nan.mantissa2 = (mant) >> 32;				      \
+       u.ieee_nan.mantissa3 = (mant);					      \
+       if ((u.ieee.mantissa0 | u.ieee.mantissa1				      \
+	    | u.ieee.mantissa2 | u.ieee.mantissa3) != 0)		      \
+	 (flt) = u.d;							      \
   } while (0)
 
 #include <strtod_l.c>