[src/sub1.c] In r10347, logging was introduced instead of #ifdef DEBUG

and printf. Removed 2 MPFR_LOG_VAR, as the variable is not normalized
yet. Re-added #ifdef DEBUG for the MPFR_LOG_MSG's since this may be
too low level and not much useful except in case of bugs.

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@10395 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 8 insertions, 4 deletions

diff --git a/src/sub1.c b/src/sub1.c
index c4b21f74f..f062420ab 100644
--- a/src/sub1.c
+++ b/src/sub1.c
@@ -209,9 +209,11 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mpfr_srcptr c, mpfr_rnd_t rnd_mode)
       cp[0] = mpn_rshift (cp + 1, MPFR_MANT(c), cn++, shift_c);
     }
 
+#ifdef DEBUG
   MPFR_LOG_MSG (("rnd=%s shift_b=%d shift_c=%d diffexp=%" MPFR_EXP_FSPEC
                  "d\n", mpfr_print_rnd_mode (rnd_mode), shift_b, shift_c,
                  (mpfr_eexp_t) diff_exp));
+#endif
 
   MPFR_ASSERTD (ap != cp);
   MPFR_ASSERTD (bp != cp);
@@ -240,8 +242,10 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mpfr_srcptr c, mpfr_rnd_t rnd_mode)
   else
     cancel2 = - (mp_size_t) ((diff_exp - cancel) / GMP_NUMB_BITS);
   /* the high cancel2 limbs from b should not be taken into account */
+#ifdef DEBUG
   MPFR_LOG_MSG (("cancel=%Pd cancel1=%Pd cancel2=%Pd\n",
                  cancel, cancel1, cancel2));
+#endif
 
   /*               ap[an-1]        ap[0]
              <----------------+-----------|---->
@@ -277,8 +281,6 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mpfr_srcptr c, mpfr_rnd_t rnd_mode)
     else
       MPN_ZERO (ap, an);
 
-  MPFR_LOG_VAR (a);
-
   /* subtract high(c) */
   if (MPFR_LIKELY(an + cancel2 > 0)) /* otherwise c does not overlap with a */
     {
@@ -320,8 +322,6 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mpfr_srcptr c, mpfr_rnd_t rnd_mode)
         }
     }
 
-  MPFR_LOG_VAR (a);
-
   /* now perform rounding */
   sh = (mpfr_prec_t) an * GMP_NUMB_BITS - aq;
   /* last unused bits from a */
@@ -369,8 +369,10 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mpfr_srcptr c, mpfr_rnd_t rnd_mode)
   cn0 = cn;
   cn -= an + cancel2;
 
+#ifdef DEBUG
   MPFR_LOG_MSG (("last sh=%d bits from a are %Mu, bn=%Pd, cn=%Pd\n",
                  sh, carry, (mpfr_prec_t) bn, (mpfr_prec_t) cn));
+#endif
 
   /* for rounding to nearest, we couldn't conclude up to here in the following
      cases:
@@ -460,7 +462,9 @@ mpfr_sub1 (mpfr_ptr a, mpfr_srcptr b, mpfr_srcptr c, mpfr_rnd_t rnd_mode)
             }
         }
 
+#ifdef DEBUG
       MPFR_LOG_MSG (("k=%d bb=%Mu cc=%Mu cmp_low=%d\n", k, bb, cc, cmp_low));
+#endif
 
       if (cmp_low < 0) /* low(b) - low(c) < 0: either truncate or subtract
                           one ulp */