+ Add mpfr_add1sp which provides addition when all the operands have the same precision.

+ Add new test files for mpfr_copysign and mpfr_min and mpfr_max.
+ Add test for mpfr_exp10 in tests/texp.c
+ Improve coverage of div_2ui.c and mul_2ui.c
+ Add a forgotten ASSERT in mpfr_sqrt


git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@2686 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 10 insertions, 3 deletions

diff --git a/add.c b/add.c
index 5c5717d15..b9985872e 100644
--- a/add.c
+++ b/add.c
@@ -87,9 +87,16 @@ mpfr_add (mpfr_ptr a, mpfr_srcptr b, mpfr_srcptr c, mp_rnd_t rnd_mode)
     }
   else
     { /* signs are equal, it's an addition */
-      if (MPFR_GET_EXP(b) < MPFR_GET_EXP(c))
-	return mpfr_add1(a, c, b, rnd_mode);
+      if (MPFR_LIKELY(MPFR_PREC(a) == MPFR_PREC(b)
+                      && MPFR_PREC(b) == MPFR_PREC(c)))
+	if (MPFR_GET_EXP(b) < MPFR_GET_EXP(c))
+	  return mpfr_add1sp(a, c, b, rnd_mode);
+	else
+	  return mpfr_add1sp(a, b, c, rnd_mode);
       else
-	return mpfr_add1(a, b, c, rnd_mode);
+	if (MPFR_GET_EXP(b) < MPFR_GET_EXP(c))
+	  return mpfr_add1(a, c, b, rnd_mode);
+	else
+	  return mpfr_add1(a, b, c, rnd_mode);
     }
 }