From 94dd520210293750ab6f3094a6a8c67e23f61ef2 Mon Sep 17 00:00:00 2001
From: Daniel Borca <dborca@users.sourceforge.net>
Date: Tue, 11 Jan 2005 10:56:39 +0000
Subject: applied Keith's patch for "safe" type-punning. made IS_NEGATIVE
 produce a boolean (useful when xoring with other booleans).

---
 src/mesa/main/imports.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'src/mesa/main')

diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index b69b5fa31a..5158bcd8b2 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -340,8 +340,13 @@ static INLINE int IS_INF_OR_NAN( float x )
  *** IS_NEGATIVE: test if float is negative
  ***/
 #if defined(USE_IEEE)
-#define GET_FLOAT_BITS(x) ((fi_type *) &(x))->i
-#define IS_NEGATIVE(x) (GET_FLOAT_BITS(x) & (1<<31))
+static INLINE int GET_FLOAT_BITS( float x )
+{
+   fi_type fi;
+   fi.f = x;
+   return fi.i;
+}
+#define IS_NEGATIVE(x) (GET_FLOAT_BITS(x) < 0)
 #else
 #define IS_NEGATIVE(x) (x < 0.0F)
 #endif
@@ -567,14 +572,9 @@ static INLINE int iceil(float f)
 
 
 /***
- *** COPY_FLOAT: copy a float from src to dest, avoid slow FP regs if possible
+ *** COPY_FLOAT: copy a float from src to dest.
  ***/
-#if defined(USE_IEEE) && !defined(DEBUG)
-#define COPY_FLOAT( dst, src )					\
-	((fi_type *) &(dst))->i = ((fi_type *) (void *) &(src))->i
-#else
 #define COPY_FLOAT( dst, src )		(dst) = (src)
-#endif
 
 
 /***
-- 
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