Misc bug fixes and code clean-up.

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@1681 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 4 insertions, 5 deletions

diff --git a/ui_sub.c b/ui_sub.c
index 144a9b942..65e96456c 100644
--- a/ui_sub.c
+++ b/ui_sub.c
@@ -1,6 +1,6 @@
-/* mpfr_ui_sub -- divide a machine integer by a floating-point number
+/* mpfr_ui_sub -- subtract a floating-point number from an integer
 
-Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+Copyright (C) 2000-2002 Free Software Foundation, Inc.
 
 This file is part of the MPFR Library.
 
@@ -19,7 +19,6 @@ along with the MPFR Library; see the file COPYING.LIB.  If not, write to
 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 MA 02111-1307, USA. */
 
-#include <stdio.h>
 #include "gmp.h"
 #include "gmp-impl.h"
 #include "longlong.h"
@@ -36,7 +35,7 @@ mpfr_ui_sub (mpfr_ptr y, unsigned long int u, mpfr_srcptr x, mp_rnd_t rnd_mode)
   if (MPFR_IS_NAN(x)) 
     {
       MPFR_SET_NAN(y);
-      return 1; /* a NaN is inexact */
+      MPFR_RET_NAN;
     }
 
   MPFR_CLEAR_NAN(y);
@@ -46,7 +45,7 @@ mpfr_ui_sub (mpfr_ptr y, unsigned long int u, mpfr_srcptr x, mp_rnd_t rnd_mode)
       MPFR_SET_INF(y);
       if (MPFR_SIGN(x) == MPFR_SIGN(y))
 	MPFR_CHANGE_SIGN(y);
-      return 0; /* +/-infinity is exact */
+      MPFR_RET(0); /* +/-infinity is exact */
     }
 
   if (u) {