From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001
From: Duncan Wilkie <antigravityd@gmail.com>
Date: Sat, 18 Nov 2023 06:11:09 -0600
Subject: Initial commit.

---
 gmp-6.3.0/tests/mpz/t-divis_2exp.c | 132 +++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 gmp-6.3.0/tests/mpz/t-divis_2exp.c

(limited to 'gmp-6.3.0/tests/mpz/t-divis_2exp.c')

diff --git a/gmp-6.3.0/tests/mpz/t-divis_2exp.c b/gmp-6.3.0/tests/mpz/t-divis_2exp.c
new file mode 100644
index 0000000..636c751
--- /dev/null
+++ b/gmp-6.3.0/tests/mpz/t-divis_2exp.c
@@ -0,0 +1,132 @@
+/* test mpz_divisible_2exp_p */
+
+/*
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU 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 test suite 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 General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_one (mpz_srcptr a, unsigned long d, int want)
+{
+  int   got;
+
+  got = (mpz_divisible_2exp_p (a, d) != 0);
+  if (want != got)
+    {
+      printf ("mpz_divisible_2exp_p wrong\n");
+      printf ("   expected %d got %d\n", want, got);
+      mpz_trace ("   a", a);
+      printf    ("   d=%lu\n", d);
+      mp_trace_base = -16;
+      mpz_trace ("   a", a);
+      printf    ("   d=0x%lX\n", d);
+      abort ();
+    }
+}
+
+void
+check_data (void)
+{
+  static const struct {
+    const char    *a;
+    unsigned long d;
+    int           want;
+
+  } data[] = {
+
+    { "0", 0, 1 },
+    { "0", 1, 1 },
+    { "0", 2, 1 },
+    { "0", 3, 1 },
+
+    { "1", 0, 1 },
+    { "1", 1, 0 },
+    { "1", 2, 0 },
+    { "1", 3, 0 },
+    { "1", 10000, 0 },
+
+    { "4", 0, 1 },
+    { "4", 1, 1 },
+    { "4", 2, 1 },
+    { "4", 3, 0 },
+    { "4", 4, 0 },
+    { "4", 10000, 0 },
+
+    { "0x80000000", 31, 1 },
+    { "0x80000000", 32, 0 },
+    { "0x80000000", 64, 0 },
+
+    { "0x100000000", 32, 1 },
+    { "0x100000000", 33, 0 },
+    { "0x100000000", 64, 0 },
+
+    { "0x8000000000000000", 63, 1 },
+    { "0x8000000000000000", 64, 0 },
+    { "0x8000000000000000", 128, 0 },
+
+    { "0x10000000000000000", 64, 1 },
+    { "0x10000000000000000", 65, 0 },
+    { "0x10000000000000000", 128, 0 },
+    { "0x10000000000000000", 256, 0 },
+
+    { "0x10000000000000000100000000", 32, 1 },
+    { "0x10000000000000000100000000", 33, 0 },
+    { "0x10000000000000000100000000", 64, 0 },
+
+    { "0x1000000000000000010000000000000000", 64, 1 },
+    { "0x1000000000000000010000000000000000", 65, 0 },
+    { "0x1000000000000000010000000000000000", 128, 0 },
+    { "0x1000000000000000010000000000000000", 256, 0 },
+    { "0x1000000000000000010000000000000000", 1024, 0 },
+
+  };
+
+  mpz_t   a, d;
+  int     i;
+
+  mpz_init (a);
+  mpz_init (d);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (a, data[i].a, 0);
+      check_one (a, data[i].d, data[i].want);
+
+      mpz_neg (a, a);
+      check_one (a, data[i].d, data[i].want);
+    }
+
+  mpz_clear (a);
+  mpz_clear (d);
+}
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+
+  check_data ();
+
+  tests_end ();
+  exit (0);
+}
-- 
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