1 files changed, 37 insertions, 0 deletions
diff --git a/mpfr/src/set_exp.c b/mpfr/src/set_exp.c
new file mode 100644
index 0000000000..f27fe5b59f
--- /dev/null
+++ b/mpfr/src/set_exp.c
@@ -0,0 +1,37 @@
+/* mpfr_set_exp - set the exponent of a floating-point number
+
+Copyright 2002-2004, 2006-2016 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"
+
+int
+mpfr_set_exp (mpfr_ptr x, mpfr_exp_t exponent)
+{
+  if (exponent >= __gmpfr_emin && exponent <= __gmpfr_emax)
+    {
+      MPFR_EXP(x) = exponent; /* do not use MPFR_SET_EXP of course... */
+      return 0;
+    }
+  else
+    {
+      return 1;
+    }
+}