Imported gcc-4.4.3

[msp430-gcc.git] / gmp / tests / mpn / t-mp_bases.c

diff --git a/gmp/tests/mpn/t-mp_bases.c b/gmp/tests/mpn/t-mp_bases.c
new file mode 100644 (file)
index 0000000..17950ec
--- /dev/null
+++ b/gmp/tests/mpn/t-mp_bases.c
@@ -0,0 +1,105 @@
+/* Check mp_bases values.
+
+Copyright 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 <stdio.h>
+#include <stdlib.h>
+#include "gmp.h"
+#include "gmp-impl.h"
+#include "longlong.h"
+#include "tests.h"
+
+
+int
+main (int argc, char *argv[])
+{
+  mp_limb_t  want_bb, want_bb_inv;
+  int        base, want_chars_per_limb;
+
+  want_chars_per_limb = refmpn_chars_per_limb (10);
+  if (MP_BASES_CHARS_PER_LIMB_10 != want_chars_per_limb)
+    {
+      printf ("MP_BASES_CHARS_PER_LIMB_10 wrong\n");
+      abort ();
+    }
+
+  want_bb = refmpn_big_base (10);
+  if (MP_BASES_BIG_BASE_10 != want_bb)
+    {
+      printf ("MP_BASES_BIG_BASE_10 wrong\n");
+      abort ();
+    }
+
+  want_bb_inv = refmpn_invert_limb
+    (want_bb << refmpn_count_leading_zeros (want_bb));
+  if (MP_BASES_BIG_BASE_INVERTED_10 != want_bb_inv)
+    {
+      printf ("MP_BASES_BIG_BASE_INVERTED_10 wrong\n");
+      abort ();
+    }
+
+  if (MP_BASES_NORMALIZATION_STEPS_10
+      != refmpn_count_leading_zeros (MP_BASES_BIG_BASE_10))
+    {
+      printf ("MP_BASES_NORMALIZATION_STEPS_10 wrong\n");
+      abort ();
+    }
+
+  for (base = 2; base < numberof (mp_bases); base++)
+    {
+      want_chars_per_limb = refmpn_chars_per_limb (base);
+      if (mp_bases[base].chars_per_limb != want_chars_per_limb)
+        {
+          printf ("mp_bases[%d].chars_per_limb wrong\n", base);
+          printf ("  got  %d\n", mp_bases[base].chars_per_limb);
+          printf ("  want %d\n", want_chars_per_limb);
+          abort ();
+        }
+
+      if (POW2_P (base))
+        {
+          want_bb = refmpn_count_trailing_zeros ((mp_limb_t) base);
+          if (mp_bases[base].big_base != want_bb)
+            {
+              printf ("mp_bases[%d].big_base (log2 of base) wrong\n", base);
+              abort ();
+            }
+        }
+      else
+        {
+          want_bb = refmpn_big_base (base);
+          if (mp_bases[base].big_base != want_bb)
+            {
+              printf ("mp_bases[%d].big_base wrong\n", base);
+              abort ();
+            }
+
+#if USE_PREINV_DIVREM_1
+          want_bb_inv = refmpn_invert_limb
+            (want_bb << refmpn_count_leading_zeros (want_bb));
+          if (mp_bases[base].big_base_inverted != want_bb_inv)
+            {
+              printf ("mp_bases[%d].big_base_inverted wrong\n", base);
+              abort ();
+            }
+#endif
+        }
+    }
+
+  exit (0);
+}