aboutsummaryrefslogtreecommitdiff
path: root/gmp-6.3.0/tests/mpf/t-pow_ui.c
diff options
context:
space:
mode:
Diffstat (limited to 'gmp-6.3.0/tests/mpf/t-pow_ui.c')
-rw-r--r--gmp-6.3.0/tests/mpf/t-pow_ui.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/gmp-6.3.0/tests/mpf/t-pow_ui.c b/gmp-6.3.0/tests/mpf/t-pow_ui.c
new file mode 100644
index 0000000..f005301
--- /dev/null
+++ b/gmp-6.3.0/tests/mpf/t-pow_ui.c
@@ -0,0 +1,69 @@
+/* Test mpf_pow_ui
+
+Copyright 2015 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_data (void)
+{
+ unsigned int b, e;
+ mpf_t b1, r, r2, limit;
+
+ mpf_inits (b1, r, r2, NULL);
+ mpf_init_set_ui (limit, 1);
+ mpf_mul_2exp (limit, limit, MAX (GMP_NUMB_BITS, 53));
+
+ /* This test just test integers with results that fit in a single
+ limb or 53 bits. This avoids any rounding. */
+
+ for (b = 0; b <= 400; b++)
+ {
+ mpf_set_ui (b1, b);
+ mpf_set_ui (r2, 1);
+ for (e = 0; e <= GMP_LIMB_BITS; e++)
+ {
+ mpf_pow_ui (r, b1, e);
+
+ if (mpf_cmp (r, r2))
+ abort ();
+
+ mpf_mul_ui (r2, r2, b);
+
+ if (mpf_cmp (r2, limit) >= 0)
+ break;
+ }
+ }
+
+ mpf_clears (b1, r, r2, limit, NULL);
+}
+
+int
+main (int argc, char **argv)
+{
+ tests_start ();
+
+ check_data ();
+
+ tests_end ();
+ exit (0);
+}