Imported gcc-4.4.3

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

diff --git a/gmp/mpz/cmpabs_ui.c b/gmp/mpz/cmpabs_ui.c
new file mode 100644 (file)
index 0000000..881692d
--- /dev/null
+++ b/gmp/mpz/cmpabs_ui.c
@@ -0,0 +1,67 @@
+/* mpz_cmpabs_ui.c -- Compare a mpz_t a with an mp_limb_t b.  Return positive,
+  zero, or negative based on if a > b, a == b, or a < b.
+
+Copyright 1991, 1993, 1994, 1995, 1997, 2000, 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"
+
+int
+mpz_cmpabs_ui (mpz_srcptr u, unsigned long int v_digit)
+{
+  mp_ptr up;
+  mp_size_t un;
+  mp_limb_t ul;
+
+  up = PTR(u);
+  un = SIZ(u);
+
+  if (un == 0)
+    return -(v_digit != 0);
+
+  un = ABS (un);
+
+  if (un == 1)
+    {
+      ul = up[0];
+      if (ul > v_digit)
+       return 1;
+      if (ul < v_digit)
+       return -1;
+      return 0;
+    }
+
+#if GMP_NAIL_BITS != 0
+  if (v_digit > GMP_NUMB_MAX)
+    {
+      if (un == 2)
+       {
+         ul = up[0] + (up[1] << GMP_NUMB_BITS);
+
+         if (ul > v_digit)
+           return 1;
+         if (ul < v_digit)
+           return -1;
+         return 0;
+       }
+    }
+#endif
+
+  return 1;
+}