svn commit: r226412 - head/lib/msun/src

[David Schultz]

Author: das
Date: Sun Oct 16 05:36:39 2011
New Revision: 226412
URL: http://svn.freebsd.org/changeset/base/226412

Log:
  Move the macros GET_LDBL_EXPSIGN() and SET_LDBL_EXPSIGN() into
  math_private.h, so they can be used elsewhere in the math library.

Modified:
  head/lib/msun/src/e_hypotl.c
  head/lib/msun/src/math_private.h

Modified: head/lib/msun/src/e_hypotl.c
==============================================================================
--- head/lib/msun/src/e_hypotl.c	Sun Oct 16 05:36:23 2011	(r226411)
+++ head/lib/msun/src/e_hypotl.c	Sun Oct 16 05:36:39 2011	(r226412)
@@ -21,13 +21,6 @@ __FBSDID("$FreeBSD$");
 #include "math.h"
 #include "math_private.h"
 
-#define	GET_LDBL_EXPSIGN(i, v) do {	\
-	union IEEEl2bits uv;		\
-					\
-	uv.e = v;			\
-	i = uv.xbits.expsign;		\
-} while (0)
-
 #define	GET_LDBL_MAN(h, l, v) do {	\
 	union IEEEl2bits uv;		\
 					\
@@ -36,14 +29,6 @@ __FBSDID("$FreeBSD$");
 	l = uv.bits.manl;		\
 } while (0)
 
-#define	SET_LDBL_EXPSIGN(v, i) do {	\
-	union IEEEl2bits uv;		\
-					\
-	uv.e = v;			\
-	uv.xbits.expsign = i;		\
-	v = uv.e;			\
-} while (0)
-
 #undef GET_HIGH_WORD
 #define	GET_HIGH_WORD(i, v)	GET_LDBL_EXPSIGN(i, v)
 #undef SET_HIGH_WORD

Modified: head/lib/msun/src/math_private.h
==============================================================================
--- head/lib/msun/src/math_private.h	Sun Oct 16 05:36:23 2011	(r226411)
+++ head/lib/msun/src/math_private.h	Sun Oct 16 05:36:39 2011	(r226412)
@@ -188,6 +188,25 @@ do {								\
   (d) = sf_u.value;						\
 } while (0)
 
+/* Get expsign as a 16 bit int from a long double.  */
+
+#define	GET_LDBL_EXPSIGN(i,d)					\
+do {								\
+  union IEEEl2bits ge_u;					\
+  ge_u.e = (d);							\
+  (i) = ge_u.xbits.expsign;					\
+} while (0)
+
+/* Set expsign of a long double from a 16 bit int.  */
+
+#define	SET_LDBL_EXPSIGN(d,v)					\
+do {								\
+  union IEEEl2bits se_u;					\
+  se_u.e = (d);							\
+  se_u.xbits.expsign = (v);					\
+  (d) = se_u.e;							\
+} while (0)
+
 #ifdef FLT_EVAL_METHOD
 /*
  * Attempt to get strict C99 semantics for assignment with non-C99 compilers.