Add new functions mpc_fr_sub, mpc_sub_fr, mpc_set_fr, and mpc_get_version.

git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@162 211d60ee-9f03-0410-a15a-8952a2c7a4e4

1 files changed, 37 insertions, 0 deletions

diff --git a/src/sub_fr.c b/src/sub_fr.c
new file mode 100644
index 0000000..efbf4d6
--- /dev/null
+++ b/src/sub_fr.c
@@ -0,0 +1,37 @@
+/* mpc_sub_fr -- Substract a floating-point number to the real part of a
+   complex number.
+
+Copyright (C) 2008 Philippe Th\'eveny
+
+This file is part of the MPC Library.
+
+The MPC Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or (at your
+option) any later version.
+
+The MPC Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the MPC Library; see the file COPYING.LIB.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+MA 02111-1307, USA. */
+
+#include "gmp.h"
+#include "mpfr.h"
+#include "mpc.h"
+
+/* return 0 iff both the real and imaginary parts are exact */
+int
+mpc_sub_fr (mpc_ptr a, mpc_srcptr b, mpfr_srcptr c, mpc_rnd_t rnd)
+{
+  int inex_re, inex_im;
+
+  inex_re = mpfr_sub (MPC_RE(a), MPC_RE(b), c, MPC_RND_RE(rnd));
+  inex_im = mpfr_set (MPC_IM(a), MPC_IM(b), MPC_RND_IM(rnd));
+
+  return MPC_INEX(inex_re, inex_im);
+}