1 files changed, 41 insertions, 0 deletions
diff --git a/src/ui_pow.c b/src/ui_pow.c
new file mode 100644
index 0000000..a566cae
--- /dev/null
+++ b/src/ui_pow.c
@@ -0,0 +1,41 @@
+/* mpfr_ui_pow -- power of n function n^x
+
+Copyright 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+Contributed by the AriC and Caramel 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_ui_pow (mpfr_ptr y, unsigned long int n, mpfr_srcptr x, mpfr_rnd_t rnd_mode)
+{
+  mpfr_t t;
+  int inexact;
+  MPFR_SAVE_EXPO_DECL (expo);
+
+  MPFR_SAVE_EXPO_MARK (expo);
+  mpfr_init2 (t, sizeof(n) * CHAR_BIT);
+  inexact = mpfr_set_ui (t, n, MPFR_RNDN);
+  MPFR_ASSERTN (!inexact);
+  inexact = mpfr_pow (y, t, x, rnd_mode);
+  mpfr_clear (t);
+  MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags);
+  MPFR_SAVE_EXPO_FREE (expo);
+  return mpfr_check_range (y, inexact, rnd_mode);
+}