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authorThomas Schwinge <thomas@codesourcery.com>2013-02-28 17:12:25 +0100
committerThomas Schwinge <thomas@codesourcery.com>2013-03-15 19:06:02 +0100
commit67e971f18ffc9b3ea57cbccba54d5203d1e6a988 (patch)
treef62ff6123ac01815295b6d6f6f9dba73c1c65862 /ports
parent64487e126468f91ecdfe7ab7a0f3a82762874d5a (diff)
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Better distinguish between NaN/qNaN/sNaN.
Diffstat (limited to 'ports')
-rw-r--r--ports/sysdeps/mips/bits/nan.h16
1 files changed, 8 insertions, 8 deletions
diff --git a/ports/sysdeps/mips/bits/nan.h b/ports/sysdeps/mips/bits/nan.h
index 7aa157b1d6..80f7866a97 100644
--- a/ports/sysdeps/mips/bits/nan.h
+++ b/ports/sysdeps/mips/bits/nan.h
@@ -22,10 +22,10 @@
/* IEEE Not A Number. */
-/* Note that MIPS has the QNaN and SNaN patterns reversed compared to most
- other architectures. The IEEE spec left the definition of this open to
+/* Note that MIPS has the qNaN and sNaN patterns reversed compared to most
+ other architectures. IEEE 754-1985 left the definition of this open to
implementations, and for MIPS the top bit of the mantissa must be SET to
- indicate a SNaN. */
+ indicate a sNaN. */
#if __GNUC_PREREQ(3,3)
@@ -43,14 +43,14 @@
# include <endian.h>
# if __BYTE_ORDER == __BIG_ENDIAN
-# define __nan_bytes { 0x7f, 0xbf, 0xff, 0xff }
+# define __qnan_bytes { 0x7f, 0xbf, 0xff, 0xff }
# endif
# if __BYTE_ORDER == __LITTLE_ENDIAN
-# define __nan_bytes { 0xff, 0xff, 0xbf, 0x7f }
+# define __qnan_bytes { 0xff, 0xff, 0xbf, 0x7f }
# endif
-static union { unsigned char __c[4]; float __d; } __nan_union
- __attribute__ ((__unused__)) = { __nan_bytes };
-# define NAN (__nan_union.__d)
+static union { unsigned char __c[4]; float __d; } __qnan_union
+ __attribute__ ((__unused__)) = { __qnan_bytes };
+# define NAN (__qnan_union.__d)
#endif /* GCC. */