1 files changed, 109 insertions, 0 deletions
diff --git a/tests/tai.c b/tests/tai.c
new file mode 100644
index 0000000..3e7bfdd
--- /dev/null
+++ b/tests/tai.c
@@ -0,0 +1,109 @@
+/* Test file for mpfr_ai.
+
+Copyright 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+Contributed by the AriC and Caramel projects, INRIA.
+
+This file is part of the GNU MPFR Library.
+
+The GNU MPFR 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 MPFR 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 MPFR Library; see the file COPYING.LESSER.  If not, see
+http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+
+#include "mpfr-test.h"
+
+#define TEST_FUNCTION mpfr_ai
+#define TEST_RANDOM_EMIN -5
+#define TEST_RANDOM_EMAX 5
+#define REDUCE_EMAX 7 /* this is to avoid that test_generic() calls mpfr_ai
+                         with too large inputs. FIXME: remove this once
+                         mpfr_ai can handle large inputs */
+#include "tgeneric.c"
+
+static void
+check_large (void)
+{
+  mpfr_t x, y, z;
+
+  mpfr_init2 (x, 38);
+  mpfr_init2 (y, 110);
+  mpfr_init2 (z, 110);
+  mpfr_set_str_binary (x, "-1E8");
+  mpfr_ai (y, x, MPFR_RNDN);
+  mpfr_set_str_binary (z, "-10001110100001011111110001100011101100011100010000110100100101011111011100000101110101010010000000101110011111E-112");
+  if (mpfr_equal_p (y, z) == 0)
+    {
+      printf ("Error in mpfr_ai for x=-2^8\n");
+      exit (1);
+    }
+#if 0 /* disabled since mpfr_ai does not currently handle large arguments */
+  mpfr_set_str_binary (x, "-1E26");
+  mpfr_ai (y, x, MPFR_RNDN);
+  mpfr_set_str_binary (z, "-110001111100000011001010010101001101001011001011101011001010100100001110001101101101000010000011001000001011E-118");
+  if (mpfr_equal_p (y, z) == 0)
+    {
+      printf ("Error in mpfr_ai for x=-2^26\n");
+      exit (1);
+    }
+  mpfr_set_str_binary (x, "-0.11111111111111111111111111111111111111E1073741823");
+  mpfr_ai (y, x, MPFR_RNDN);
+  /* FIXME: compute the correctly rounded value we should get for Ai(x),
+     and check we get this value */
+#endif
+  mpfr_clear (x);
+  mpfr_clear (y);
+  mpfr_clear (z);
+}
+
+static void
+check_zero (void)
+{
+  mpfr_t x, y, r;
+
+  mpfr_init2 (x, 53);
+  mpfr_init2 (y, 53);
+  mpfr_init2 (r, 53);
+
+  mpfr_set_str_binary (r, "10110101110001100011110010110001001110001010110111E-51");
+
+  mpfr_set_ui (x, 0, MPFR_RNDN);
+  mpfr_ai (y, x, MPFR_RNDN);
+  if (mpfr_equal_p (y, r) == 0)
+    {
+      printf ("Error in mpfr_ai for x=0\n");
+      printf ("Expected "); mpfr_dump (r);
+      printf ("Got      "); mpfr_dump (y);
+      exit (1);
+    }
+  mpfr_clear (x);
+  mpfr_clear (y);
+  mpfr_clear (r);
+}
+
+int
+main (int argc, char *argv[])
+{
+  tests_start_mpfr ();
+
+  check_large ();
+  check_zero ();
+
+  test_generic (2, 100, 5);
+
+  tests_end_mpfr ();
+  return 0;
+}