[gcc] GCC 4.5.0=>4.5.1

gcc/mpfr/tests/tatan.c

Index: gcc/mpfr/tests/tatan.c
diff --git a/gcc/mpfr/tests/tatan.c b/gcc/mpfr/tests/tatan.c
deleted file mode 100644
index c9d92032a3b8e0f1c2d17b37c952f75d99a9e083..0000000000000000000000000000000000000000
--- a/gcc/mpfr/tests/tatan.c
+++ /dev/null
@@ -1,462 +0,0 @@
-/* Test file for mpfr_atan.
-
-Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-Contributed by the Arenaire and Cacao 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 2.1 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.LIB.  If not, write to
-the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
-MA 02110-1301, USA. */
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "mpfr-test.h"
-
-static void
-special (void)
-{
-  mpfr_t x, y, z;
-  int r;
-  int i;
-
-  mpfr_init2 (x, 53);
-  mpfr_init2 (y, 53);
-  mpfr_init2 (z, 53);
-
-  mpfr_set_str_binary (x, "1.0000100110000001100111100011001110101110100111011101");
-  mpfr_set_str_binary (y, "1.1001101101110100101100110011011101101000011010111110e-1");
-  mpfr_atan (z, x, GMP_RNDN);
-  if (mpfr_cmp (y, z))
-    {
-      printf ("Error in mpfr_atan for prec=53, rnd=GMP_RNDN\n");
-      printf ("x=");
-      mpfr_out_str (stdout, 2, 0, x, GMP_RNDN);
-      printf ("\nexpected ");
-      mpfr_out_str (stdout, 2, 0, y, GMP_RNDN);
-      printf ("\ngot      ");
-      mpfr_out_str (stdout, 2, 0, z, GMP_RNDN);
-      printf ("\n");
-      exit (1);
-    }
-
-  /* atan(+Inf) = Pi/2 */
-  for (r = 0; r < GMP_RND_MAX ; r++)
-    {
-      mpfr_set_inf (x, 1);
-      mpfr_atan (y, x, (mp_rnd_t) r);
-      mpfr_const_pi (x, (mp_rnd_t) r);
-      mpfr_div_2exp (x, x, 1, (mp_rnd_t) r);
-      if (mpfr_cmp (x, y))
-        {
-          printf ("Error: mpfr_atan(+Inf), rnd=%s\n",
-                  mpfr_print_rnd_mode ((mp_rnd_t) r));
-          exit (1);
-        }
-    }
-
-  /* atan(-Inf) = - Pi/2 */
-  for (r = 0; r < GMP_RND_MAX ; r++)
-    {
-      mpfr_set_inf (x, -1);
-      mpfr_atan (y, x, (mp_rnd_t) r);
-      mpfr_const_pi (x, MPFR_INVERT_RND((mp_rnd_t) r));
-      mpfr_neg (x, x, (mp_rnd_t) r);
-      mpfr_div_2exp (x, x, 1, (mp_rnd_t) r);
-      if (mpfr_cmp (x, y))
-        {
-          printf ("Error: mpfr_atan(-Inf), rnd=%s\n",
-                  mpfr_print_rnd_mode ((mp_rnd_t) r));
-          exit (1);
-        }
-    }
-
-  /* atan(NaN) = NaN */
-  mpfr_set_nan (x);
-  mpfr_atan (y, x, GMP_RNDN);
-  if (!mpfr_nan_p (y))
-    {
-      printf ("Error: mpfr_atan(NaN) <> NaN\n");
-      exit (1);
-    }
-
-  /* atan(+/-0) = +/-0 */
-  mpfr_set_ui (x, 0, GMP_RNDN);
-  MPFR_SET_NEG (y);
-  mpfr_atan (y, x, GMP_RNDN);
-  if (mpfr_cmp_ui (y, 0) || MPFR_IS_NEG (y))
-    {
-      printf ("Error: mpfr_atan (+0) <> +0\n");
-      exit (1);
-    }
-  mpfr_atan (x, x, GMP_RNDN);
-  if (mpfr_cmp_ui (x, 0) || MPFR_IS_NEG (x))
-    {
-      printf ("Error: mpfr_atan (+0) <> +0 (in place)\n");
-      exit (1);
-    }
-  mpfr_neg (x, x, GMP_RNDN);
-  MPFR_SET_POS (y);
-  mpfr_atan (y, x, GMP_RNDN);
-  if (mpfr_cmp_ui (y, 0) || MPFR_IS_POS (y))
-    {
-      printf ("Error: mpfr_atan (-0) <> -0\n");
-      exit (1);
-    }
-  mpfr_atan (x, x, GMP_RNDN);
-  if (mpfr_cmp_ui (x, 0) || MPFR_IS_POS (x))
-    {
-      printf ("Error: mpfr_atan (-0) <> -0 (in place)\n");
-      exit (1);
-    }
-
-  mpfr_set_prec (x, 32);
-  mpfr_set_prec (y, 32);
-
-  /* test one random positive argument */
-  mpfr_set_str_binary (x, "0.10000100001100101001001001011001");
-  mpfr_atan (x, x, GMP_RNDN);
-  mpfr_set_str_binary (y, "0.1111010000001111001111000000011E-1");
-  if (mpfr_cmp (x, y))
-    {
-      printf ("Error in mpfr_atan (1)\n");
-      exit (1);
-    }
-
-  /* test one random negative argument */
-  mpfr_set_str_binary (x, "-0.1100001110110000010101011001011");
-  mpfr_atan (x, x, GMP_RNDN);
-  mpfr_set_str_binary (y, "-0.101001110001010010110001110001");
-  if (mpfr_cmp (x, y))
-    {
-      printf ("Error in mpfr_atan (2)\n");
-      mpfr_print_binary (x); printf ("\n");
-      mpfr_print_binary (y); printf ("\n");
-      exit (1);
-    }
-
-  mpfr_set_prec (x, 3);
-  mpfr_set_prec (y, 192);
-  mpfr_set_prec (z, 192);
-  mpfr_set_str_binary (x, "-0.100e1");
-  mpfr_atan (z, x, GMP_RNDD);
-  mpfr_set_str_binary (y, "-0.110010010000111111011010101000100010000101101000110000100011010011000100110001100110001010001011100000001101110000011100110100010010100100000010010011100000100010001010011001111100110001110101");
-  if (mpfr_cmp (z, y))
-    {
-      printf ("Error in mpfr_atan (3)\n");
-      printf ("Expected "); mpfr_print_binary (y); printf ("\n");
-      printf ("Got      "); mpfr_print_binary (z); printf ("\n");
-      exit (1);
-    }
-
-  /* Test regression */
-  mpfr_set_prec (x, 51);
-  mpfr_set_prec (y, 51);
-  mpfr_set_str_binary (x,
-           "0.101100100000101111111010001111111000001000000000000E-11");
-  i = mpfr_atan (y, x, GMP_RNDN);
-  if (mpfr_cmp_str (y,
-   "1.01100100000101111111001110011001010110100100000000e-12", 2, GMP_RNDN)
-      || i >= 0)
-    {
-      printf ("Wrong Regression test (%d)\n", i);
-      mpfr_dump (y);
-      exit (1);
-    }
-
-  mpfr_set_si (x, -1, GMP_RNDN);
-  mpfr_atan (x, x, GMP_RNDN);
-  MPFR_ASSERTN (MPFR_IS_NEG (x));
-
-  /* Test regression */
-  mpfr_set_prec (x, 48);
-  mpfr_set_prec (y, 48);
-  mpfr_set_str_binary (x, "1.11001110010000011111100000010000000000000000000e-19");
-  mpfr_atan (y, x, GMP_RNDD);
-  if (mpfr_cmp_str (y, "0.111001110010000011111100000001111111110000010011E-18", 2, GMP_RNDN))
-    {
-      printf ("Error in mpfr_atan (4)\n");
-      printf ("Input    1.11001110010000011111100000010000000000000000000e-19 [prec=48]\n");
-      printf ("Expected 0.111001110010000011111100000001111111110000010011E-18\n");
-      printf ("Got      "); mpfr_dump (y);
-      exit (1);
-    }
-
-  mpfr_clear (x);
-  mpfr_clear (y);
-  mpfr_clear (z);
-}
-
-#define TEST_FUNCTION mpfr_atan
-#define test_generic test_generic_atan
-#define RAND_FUNCTION(x) (mpfr_urandomb (x, RANDS), mpfr_mul_2si (x, x, (randlimb () %1000-500), GMP_RNDN))
-#include "tgeneric.c"
-
-#define TEST_FUNCTION mpfr_atan2
-#define TWO_ARGS
-#define test_generic test_generic_atan2
-#include "tgeneric.c"
-
-#define TEST_FUNCTION mpfr_atan2
-#define TWO_ARGS
-#define RAND_FUNCTION(x) (mpfr_urandomb (x, RANDS), MPFR_SET_NEG (x))
-#define test_generic test_generic_atan2_neg
-#include "tgeneric.c"
-
-static void
-special_overflow (void)
-{
-  mpfr_t x, y;
-  mp_exp_t emin, emax;
-
-  emin = mpfr_get_emin ();
-  emax = mpfr_get_emax ();
-
-  set_emin (-125);
-  set_emax (128);
-  mpfr_init2 (x, 24);
-  mpfr_init2 (y, 48);
-  mpfr_set_str_binary (x, "0.101101010001001101111010E0");
-  mpfr_atan (y, x, GMP_RNDN);
-  if (mpfr_cmp_str (y, "0.100111011001100111000010111101000111010101011110E0",
-                    2, GMP_RNDN))
-    {
-      printf("Special Overflow error.\n");
-      mpfr_dump (y);
-      exit (1);
-    }
-  mpfr_clear (y);
-  mpfr_clear (x);
-  set_emin (emin);
-  set_emax (emax);
-}
-
-static void
-special_atan2 (void)
-{
-  mpfr_t x, y, z;
-
-  mpfr_inits2 (4, x, y, z, (mpfr_ptr) 0);
-
-  /* Anything with NAN should be set to NAN */
-  mpfr_set_ui (y, 0, GMP_RNDN);
-  mpfr_set_nan (x);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (MPFR_IS_NAN (z));
-  mpfr_swap (x, y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (MPFR_IS_NAN (z));
-
-  /* 0+ 0+ --> 0+ */
-  mpfr_set_ui (y, 0, GMP_RNDN);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (MPFR_IS_ZERO (z) && MPFR_IS_POS (z));
-  /* 0- 0+ --> 0- */
-  MPFR_CHANGE_SIGN (y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (MPFR_IS_ZERO (z) && MPFR_IS_NEG (z));
-  /* 0- 0- --> -PI */
-  MPFR_CHANGE_SIGN (x);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "-3.1415", 10, GMP_RNDN) == 0);
-  /* 0+ 0- --> +PI */
-  MPFR_CHANGE_SIGN (y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "3.1415", 10, GMP_RNDN) == 0);
-  /* 0+ -1 --> PI */
-  mpfr_set_si (x, -1, GMP_RNDN);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "3.1415", 10, GMP_RNDN) == 0);
-  /* 0- -1 --> -PI */
-  MPFR_CHANGE_SIGN (y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "-3.1415", 10, GMP_RNDN) == 0);
-  /* 0- +1 --> 0- */
-  mpfr_set_ui (x, 1, GMP_RNDN);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (MPFR_IS_ZERO (z) && MPFR_IS_NEG (z));
-  /* 0+ +1 --> 0+ */
-  MPFR_CHANGE_SIGN (y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (MPFR_IS_ZERO (z) && MPFR_IS_POS (z));
-  /* +1 0+ --> PI/2 */
-  mpfr_swap (x, y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "1.57075", 10, GMP_RNDN) == 0);
-  /* +1 0- --> PI/2 */
-  MPFR_CHANGE_SIGN (x);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "1.57075", 10, GMP_RNDN) == 0);
-  /* -1 0- --> -PI/2 */
-  MPFR_CHANGE_SIGN (y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "-1.57075", 10, GMP_RNDN) == 0);
-  /* -1 0+ --> -PI/2 */
-  MPFR_CHANGE_SIGN (x);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "-1.57075", 10, GMP_RNDN) == 0);
-
-  /* -1 +INF --> -0 */
-  MPFR_SET_INF (x);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (MPFR_IS_ZERO (z) && MPFR_IS_NEG (z));
-  /* +1 +INF --> +0 */
-  MPFR_CHANGE_SIGN (y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (MPFR_IS_ZERO (z) && MPFR_IS_POS (z));
-  /* +1 -INF --> +PI */
-  MPFR_CHANGE_SIGN (x);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "3.1415", 10, GMP_RNDN) == 0);
-  /* -1 -INF --> -PI */
-  MPFR_CHANGE_SIGN (y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "-3.1415", 10, GMP_RNDN) == 0);
-  /* -INF -1 --> -PI/2 */
-  mpfr_swap (x, y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "-1.57075", 10, GMP_RNDN) == 0);
-  /* +INF -1  --> PI/2 */
-  MPFR_CHANGE_SIGN (y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "1.57075", 10, GMP_RNDN) == 0);
-  /* +INF -INF --> 3*PI/4 */
-  MPFR_SET_INF (x);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "2.356194490192344928", 10, GMP_RNDN) == 0);
-  /* +INF +INF --> PI/4 */
-  MPFR_CHANGE_SIGN (x);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "0.785375", 10, GMP_RNDN) == 0);
-  /* -INF +INF --> -PI/4 */
-  MPFR_CHANGE_SIGN (y);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "-0.785375", 10, GMP_RNDN) == 0);
-  /* -INF -INF --> -3*PI/4 */
-  MPFR_CHANGE_SIGN (x);
-  mpfr_atan2 (z, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_cmp_str (z, "-2.356194490192344928", 10, GMP_RNDN) == 0);
-
-  mpfr_clears (x, y, z, (mpfr_ptr) 0);
-}
-
-/* from Christopher Creutzig, 18 Jul 2007 */
-static void
-smallvals_atan2 (void)
-{
-  mpfr_t a, x, y;
-  mp_exp_t old_emin;
-
-  mpfr_inits (a, x, y, (mpfr_ptr) 0);
-  mpfr_set_ui (y, 0, GMP_RNDN);
-  mpfr_nextbelow (y);
-  mpfr_set_ui (x, 1, GMP_RNDN);
-  /* y=-2^(-emin-1), x=1 */
-
-  mpfr_atan2 (a, y, x, GMP_RNDD);
-  MPFR_ASSERTN (mpfr_equal_p (a, y));
-
-  mpfr_atan2 (a, y, x, GMP_RNDU);
-  MPFR_ASSERTN (mpfr_zero_p (a) && MPFR_IS_NEG(a));
-
-  mpfr_set_prec (x, 8);
-  mpfr_set_prec (y, 8);
-  mpfr_set_prec (a, 8);
-  old_emin = mpfr_get_emin ();
-  mpfr_set_emin (MPFR_EMIN_MIN);
-
-  mpfr_set_si (y, 3, GMP_RNDN);
-  mpfr_set_exp (y, mpfr_get_emin ());
-  mpfr_set_str_binary (x, "1.1");
-  mpfr_atan2 (a, y, x, GMP_RNDU);
-  mpfr_set_si (y, 1, GMP_RNDN);
-  mpfr_set_exp (y, mpfr_get_emin ());
-  MPFR_ASSERTN (mpfr_equal_p (a, y));
-
-  /* From a bug reported by Christopher Creutzig on 2007-08-28.
-     Added test in each rounding mode.
-     Segmentation fault or assertion failure due to an infinite Ziv loop. */
-  mpfr_set_si (y, 1, GMP_RNDN);
-  mpfr_set_exp (y, mpfr_get_emin ());
-  mpfr_set_str_binary (x, "1.01");
-  mpfr_atan2 (a, y, x, GMP_RNDZ);
-  MPFR_ASSERTN (mpfr_zero_p (a));
-  mpfr_atan2 (a, y, x, GMP_RNDD);
-  MPFR_ASSERTN (mpfr_zero_p (a));
-  mpfr_atan2 (a, y, x, GMP_RNDU);
-  MPFR_ASSERTN (mpfr_equal_p (a, y));
-  mpfr_atan2 (a, y, x, GMP_RNDN);
-  MPFR_ASSERTN (mpfr_equal_p (a, y));
-
-  mpfr_set_emin (old_emin);
-
-  mpfr_clears (a, x, y, (mpfr_ptr) 0);
-}
-
-/* Bug found by Robert Bajema (regression in MPFR 2.3.0).
-   The cause is the underflow flag set before the mpfr_atan2 call. */
-static void
-atan2_bug_20071003 (void)
-{
-  mpfr_t a, x, y, z;
-
-  mpfr_inits (a, x, y, z, (mpfr_ptr) 0);
-
-  mpfr_set_underflow ();
-  mpfr_set_str_binary (y,
-    "-0.10100110110100110111010110111111100110100010001110110E2");
-  mpfr_set_str_binary (x,
-    "0.10100101010110010100010010111000110110011110001011110E3");
-  mpfr_set_str_binary (z,
-    "-0.11101111001101101100111011001101000010010111101110110E-1");
-  mpfr_atan2 (a, y, x, GMP_RNDN);
-  if (! mpfr_equal_p (a, z))
-    {
-      printf ("mpfr_atan2 fails on:\n");
-      printf ("  y = ");
-      mpfr_dump (y);
-      printf ("  x = ");
-      mpfr_dump (x);
-      printf ("Expected ");
-      mpfr_dump (z);
-      printf ("Got      ");
-      mpfr_dump (a);
-      exit (1);
-    }
-
-  mpfr_clears (a, x, y, z, (mpfr_ptr) 0);
-}
-
-int
-main (int argc, char *argv[])
-{
-  tests_start_mpfr ();
-
-  special_overflow ();
-  special ();
-  special_atan2 ();
-  smallvals_atan2 ();
-  atan2_bug_20071003 ();
-
-  test_generic_atan  (2, 200, 17);
-  test_generic_atan2 (2, 200, 17);
-  test_generic_atan2_neg (2, 200, 17);
-
-  data_check ("data/atan", mpfr_atan, "mpfr_atan");
-  bad_cases (mpfr_atan, mpfr_tan, "mpfr_atan", 256, -40, 1, 4, 128, 800, 40);
-
-  tests_end_mpfr ();
-  return 0;
-}