Replace use of mpfr_save_emin_emax () / mpfr_restore_emin_emax()

by MPFR_SAVE_EXPO macros (DECL, MARK and FREE) which are faster
and thread safe.


git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@3100 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 3 insertions, 2 deletions

diff --git a/sub_ui.c b/sub_ui.c
index 6ad1e7c24..34683024d 100644
--- a/sub_ui.c
+++ b/sub_ui.c
@@ -32,6 +32,7 @@ mpfr_sub_ui (mpfr_ptr y, mpfr_srcptr x, unsigned long int u, mp_rnd_t rnd_mode)
     mp_limb_t up[1];
     unsigned long cnt;
     int inex;
+    MPFR_SAVE_EXPO_DECL (expo);
 
     MPFR_TMP_INIT1(up, uu, BITS_PER_MP_LIMB);
     MPFR_ASSERTN(u == (mp_limb_t) u);
@@ -40,10 +41,10 @@ mpfr_sub_ui (mpfr_ptr y, mpfr_srcptr x, unsigned long int u, mp_rnd_t rnd_mode)
 
     /* Optimization note: Exponent save/restore operations may be
        removed if mpfr_sub works even when uu is out-of-range. */
-    mpfr_save_emin_emax();
+    MPFR_SAVE_EXPO_MARK (expo);
     MPFR_SET_EXP (uu, BITS_PER_MP_LIMB - cnt);
     inex = mpfr_sub(y, x, uu, rnd_mode);
-    mpfr_restore_emin_emax();
+    MPFR_SAVE_EXPO_FREE (expo);
     return mpfr_check_range(y, inex, rnd_mode);
   }
   else