svn commit: r283693 - head/lib/libc/gen

[Andrew Turner]

Author: andrew
Date: Fri May 29 09:23:20 2015
New Revision: 283693
URL: https://svnweb.freebsd.org/changeset/base/283693

Log:
  Fix __isinfl on architectures where double == long double. This is the
  case on at least ARM and PowerPC.
  
  MFC after:	1 week

Modified:
  head/lib/libc/gen/isinf.c

Modified: head/lib/libc/gen/isinf.c
==============================================================================
--- head/lib/libc/gen/isinf.c	Fri May 29 09:17:59 2015	(r283692)
+++ head/lib/libc/gen/isinf.c	Fri May 29 09:23:20 2015	(r283693)
@@ -26,6 +26,8 @@
  * $FreeBSD$
  */
 
+#include <machine/float.h>
+
 #include <math.h>
 
 #include "fpmath.h"
@@ -62,9 +64,9 @@ __isinfl(long double e)
 
 	u.e = e;
 	mask_nbit_l(u);
-#ifndef __alpha__
-	return (u.bits.exp == 32767 && u.bits.manl == 0 && u.bits.manh == 0);
-#else
+#if LDBL_MANT_DIG == 53
 	return (u.bits.exp == 2047 && u.bits.manl == 0 && u.bits.manh == 0);
+#else
+	return (u.bits.exp == 32767 && u.bits.manl == 0 && u.bits.manh == 0);
 #endif
 }