Imported gcc-4.4.3

[msp430-gcc.git] / gmp / mpz / ui_pow_ui.c

diff --git a/gmp/mpz/ui_pow_ui.c b/gmp/mpz/ui_pow_ui.c
new file mode 100644 (file)
index 0000000..4a0f7bd
--- /dev/null
+++ b/gmp/mpz/ui_pow_ui.c
@@ -0,0 +1,48 @@
+/* mpz_ui_pow_ui -- ulong raised to ulong.
+
+Copyright 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP 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 MP 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 MP Library.  If not, see http://www.gnu.org/licenses/.  */
+
+#include "gmp.h"
+#include "gmp-impl.h"
+
+
+void
+mpz_ui_pow_ui (mpz_ptr r, unsigned long b, unsigned long e)
+{
+#if GMP_NAIL_BITS != 0
+  if (b > GMP_NUMB_MAX)
+    {
+      mp_limb_t bb[2];
+      bb[0] = b & GMP_NUMB_MASK;
+      bb[1] = b >> GMP_NUMB_BITS;
+      mpz_n_pow_ui (r, bb, (mp_size_t) 2, e);
+    }
+  else
+#endif
+    {
+#ifdef _LONG_LONG_LIMB
+      /* i386 gcc 2.95.3 doesn't recognise blimb can be eliminated when
+        mp_limb_t is an unsigned long, so only use a separate blimb when
+        necessary.  */
+      mp_limb_t  blimb = b;
+      mpz_n_pow_ui (r, &blimb, (mp_size_t) (b != 0), e);
+#else
+      mpz_n_pow_ui (r, &b,     (mp_size_t) (b != 0), e);
+#endif
+    }
+}