[fma.c] fixed bug found by hydra with GMP_CHECK_RANDOMIZE=1346362345

	(check for zero real or imaginary part was too late)


git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@1254 211d60ee-9f03-0410-a15a-8952a2c7a4e4

1 files changed, 1 insertions, 1 deletions

diff --git a/src/fma.c b/src/fma.c
index 1da4297..3512caf 100644
--- a/src/fma.c
+++ b/src/fma.c
@@ -159,9 +159,9 @@ mpc_fma (mpc_ptr r, mpc_srcptr a, mpc_srcptr b, mpc_srcptr c, mpc_rnd_t rnd)
         break;
       diffre = mpfr_get_exp (mpc_realref(ab));
       diffim = mpfr_get_exp (mpc_imagref(ab));
+      mpc_add (ab, ab, c, MPC_RNDZZ);
       if (mpfr_zero_p (mpc_realref(ab)) || mpfr_zero_p (mpc_imagref(ab)))
         break;
-      mpc_add (ab, ab, c, MPC_RNDZZ);
       diffre -= mpfr_get_exp (mpc_realref(ab));
       diffim -= mpfr_get_exp (mpc_imagref(ab));
       diffre = (diffre > 0 ? diffre + 1 : 1);