commit f081e139feb56ae0cde4af6ea8176a41f2fc80d7
author Elliott Hughes <enh@google.com> Wed Apr 16 16:45:59 2014 -0700
committer Elliott Hughes <enh@google.com> Wed Apr 16 16:45:59 2014 -0700
tree 3da21e6c8296bb8c0d2ba2ad78ae26a8945469d5
parent 4abaa576e86e4ceaa9a18271f306787294a1cdfc

Switch fpclassify over to ieee_ext.

Change-Id: I441bb7f715da24e1c04b0386ad9dcde0ea8c797c

libc/bionic/fpclassify.cpp

diff --git a/libc/bionic/fpclassify.cpp b/libc/bionic/fpclassify.cpp
index 8231093..82e1b03 100644
--- a/libc/bionic/fpclassify.cpp
+++ b/libc/bionic/fpclassify.cpp
@@ -96,22 +96,19 @@
 
 union long_double_u {
   long double ld;
-  struct {
-    unsigned long fracl:64;
-    unsigned long frach:48;
-    unsigned int exp:15;
-    unsigned int sign:1;
-  } bits;
+  ieee_ext bits;
 };
 
+#define zero_frac(b) ((b.ext_fracl | b.ext_fraclm | b.ext_frachm | b.ext_frach) == 0)
+
 int __fpclassifyl(long double ld) {
   long_double_u u;
   u.ld = ld;
-  if (u.bits.exp == 0) {
-    return ((u.bits.fracl | u.bits.frach) == 0) ? FP_ZERO : FP_SUBNORMAL;
+  if (u.bits.ext_exp == 0) {
+    return zero_frac(u.bits) ? FP_ZERO : FP_SUBNORMAL;
   }
-  if (u.bits.exp == EXT_EXP_INFNAN) {
-    return ((u.bits.fracl | u.bits.frach) == 0) ? FP_INFINITE : FP_NAN;
+  if (u.bits.ext_exp == EXT_EXP_INFNAN) {
+    return zero_frac(u.bits) ? FP_INFINITE : FP_NAN;
   }
   return FP_NORMAL;
 }