[fma.c] fixed error in mpfr_can_round() calls: use rnd1=GMP_RNDN to say

	the error on the approximation can be positive or negative (work with
	Benjamin Dadoun)


git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@1171 211d60ee-9f03-0410-a15a-8952a2c7a4e4

1 files changed, 2 insertions, 2 deletions

diff --git a/src/fma.c b/src/fma.c
index b38f2be..fa2c0ca 100644
--- a/src/fma.c
+++ b/src/fma.c
@@ -167,10 +167,10 @@ mpc_fma (mpc_ptr r, mpc_srcptr a, mpc_srcptr b, mpc_srcptr c, mpc_rnd_t rnd)
       diffre = (diffre > 0 ? diffre + 1 : 1);
       diffim = (diffim > 0 ? diffim + 1 : 1);
       okre = diffre > wpre ? 0 : mpfr_can_round (mpc_realref(ab),
-                                 wpre - diffre, GMP_RNDZ, GMP_RNDZ,
+                                 wpre - diffre, GMP_RNDN, GMP_RNDZ,
                                  pre + (MPC_RND_RE (rnd) == GMP_RNDN));
       okim = diffim > wpim ? 0 : mpfr_can_round (mpc_imagref(ab),
-                                 wpim - diffim, GMP_RNDZ, GMP_RNDZ,
+                                 wpim - diffim, GMP_RNDN, GMP_RNDZ,
                                  pim + (MPC_RND_IM (rnd) == GMP_RNDN));
       if (okre && okim)
         {