1 files changed, 31 insertions, 0 deletions
diff --git a/mpfr/src/set_zero.c b/mpfr/src/set_zero.c
new file mode 100644
index 0000000000..ba471340f9
--- /dev/null
+++ b/mpfr/src/set_zero.c
@@ -0,0 +1,31 @@
+/* mpfr_set_zero -- set a number to plus or minus zero.
+
+Copyright 2009-2016 Free Software Foundation, Inc.
+Contributed by the AriC and Caramba projects, INRIA.
+
+This file is part of the GNU MPFR Library.
+
+The GNU MPFR 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 3 of the License, or (at your
+option) any later version.
+
+The GNU MPFR 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 GNU MPFR Library; see the file COPYING.LESSER.  If not, see
+http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include "mpfr-impl.h"
+
+void
+mpfr_set_zero (mpfr_ptr x, int sign)
+{
+  mpfr_set_ui (x, 0, MPFR_RNDN);
+  if (sign < 0)
+    MPFR_SET_NEG(x);
+}