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Unified Diff: gcc/mpfr/tests/tget_f.c

Issue 3050029: [gcc] GCC 4.5.0=>4.5.1 (Closed) Base URL: ssh://git@gitrw.chromium.org:9222/nacl-toolchain.git
Patch Set: Created 10 years, 5 months ago
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Index: gcc/mpfr/tests/tget_f.c
diff --git a/gcc/mpfr/tests/tget_f.c b/gcc/mpfr/tests/tget_f.c
deleted file mode 100644
index bce29e870a9f93774226488f0d0f7ff42134b00a..0000000000000000000000000000000000000000
--- a/gcc/mpfr/tests/tget_f.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/* Test file for mpfr_get_f.
-
-Copyright 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 <limits.h>
-
-#include "mpfr-test.h"
-
-/* Test that there is no lost of accuracy when converting a mpfr_t number
- into a mpf_t number (test with various precisions and exponents). */
-static void
-prec_test (void)
-{
- int px, py;
-
- for (py = 3; py <= 136; py++)
- {
- mpfr_t y1, y2, y3;
-
- mpfr_init2 (y1, py);
- mpfr_init2 (y2, py);
- mpfr_init2 (y3, py);
-
- for (px = 32; px <= 160; px += 32)
- {
- mpf_t x1, x2, x3;
- int e;
-
- mpf_init (x1);
- mpf_init (x2);
- mpf_init (x3);
- mpfr_set_ui_2exp (y1, 1, py - 1, GMP_RNDN);
- mpfr_get_f (x1, y1, GMP_RNDN); /* exact (power of 2) */
- mpf_set (x2, x1);
- mpfr_set (y2, y1, GMP_RNDN);
-
- for (e = py - 2; e >= 0; e--)
- {
- int inex;
- mpf_div_2exp (x2, x2, 1);
- mpf_add (x1, x1, x2);
- mpfr_div_2exp (y2, y2, 1, GMP_RNDN);
- inex = mpfr_add (y1, y1, y2, GMP_RNDN);
- MPFR_ASSERTN (inex == 0);
- mpfr_set_f (y3, x1, GMP_RNDN);
- if (! mpfr_equal_p (y1, y3))
- break;
- mpfr_get_f (x3, y3, GMP_RNDN);
- if (mpf_cmp (x1, x3) != 0)
- {
- printf ("Error in prec_test (px = %d, py = %d, e = %d)\n",
- px, py, e);
- printf ("x1 = ");
- mpf_out_str (stdout, 16, 0, x1);
- printf ("\nx2 = ");
- mpf_out_str (stdout, 16, 0, x1);
- printf ("\n");
- exit (1);
- }
- }
-
- mpf_clear (x1);
- mpf_clear (x2);
- mpf_clear (x3);
- }
-
- mpfr_clear (y1);
- mpfr_clear (y2);
- mpfr_clear (y3);
- }
-}
-
-int
-main (void)
-{
- mpf_t x;
- mpfr_t y, z;
- unsigned long i;
- mp_exp_t e;
- int inex;
-
- tests_start_mpfr ();
-
- mpfr_init (y);
- mpfr_init (z);
- mpf_init (x);
-
- mpfr_set_nan (y);
- if (mpfr_get_f (x, y, GMP_RNDN) == 0)
- {
- printf ("Error: mpfr_get_f(NaN) should fail\n");
- exit (1);
- }
-
- mpfr_set_inf (y, 1);
- if (mpfr_get_f (x, y, GMP_RNDN) == 0)
- {
- printf ("Error: mpfr_get_f(+Inf) should fail\n");
- exit (1);
- }
-
- mpfr_set_inf (y, -1);
- if (mpfr_get_f (x, y, GMP_RNDN) == 0)
- {
- printf ("Error: mpfr_get_f(-Inf) should fail\n");
- exit (1);
- }
-
- mpfr_set_ui (y, 0, GMP_RNDN);
- if (mpfr_get_f (x, y, GMP_RNDN) || mpf_cmp_ui (x, 0))
- {
- printf ("Error: mpfr_get_f(+0) fails\n");
- exit (1);
- }
-
- mpfr_set_ui (y, 0, GMP_RNDN);
- mpfr_neg (y, y, GMP_RNDN);
- if (mpfr_get_f (x, y, GMP_RNDN) || mpf_cmp_ui (x, 0))
- {
- printf ("Error: mpfr_get_f(-0) fails\n");
- exit (1);
- }
-
- i = 1;
- while (i)
- {
- mpfr_set_ui (y, i, GMP_RNDN);
- if (mpfr_get_f (x, y, GMP_RNDN) || mpf_cmp_ui (x, i))
- {
- printf ("Error: mpfr_get_f(%lu) fails\n", i);
- exit (1);
- }
- if (i <= - (unsigned long) LONG_MIN)
- {
- long j = i < - (unsigned long) LONG_MIN ? - (long) i : LONG_MIN;
- mpfr_set_si (y, j, GMP_RNDN);
- if (mpfr_get_f (x, y, GMP_RNDN) || mpf_cmp_si (x, j))
- {
- printf ("Error: mpfr_get_f(-%lu) fails\n", i);
- exit (1);
- }
- }
- i *= 2;
- }
-
- /* same tests, but with a larger precision for y, which requires to
- round it */
- mpfr_set_prec (y, 100);
- i = 1;
- while (i)
- {
- mpfr_set_ui (y, i, GMP_RNDN);
- if (mpfr_get_f (x, y, GMP_RNDN) || mpf_cmp_ui (x, i))
- {
- printf ("Error: mpfr_get_f(%lu) fails\n", i);
- exit (1);
- }
- mpfr_set_si (y, (signed long) -i, GMP_RNDN);
- if (mpfr_get_f (x, y, GMP_RNDN) || mpf_cmp_si (x, (signed long) -i))
- {
- printf ("Error: mpfr_get_f(-%lu) fails\n", i);
- exit (1);
- }
- i *= 2;
- }
-
- /* bug reported by Jim White */
- for (e = 0; e <= 2 * BITS_PER_MP_LIMB; e++)
- {
- /* test with 2^(-e) */
- mpfr_set_ui (y, 1, GMP_RNDN);
- mpfr_div_2exp (y, y, e, GMP_RNDN);
- mpfr_get_f (x, y, GMP_RNDN);
- mpf_mul_2exp (x, x, e);
- if (mpf_cmp_ui (x, 1) != 0)
- {
- printf ("Error: mpfr_get_f(x,y,GMP_RNDN) fails\n");
- printf ("y=");
- mpfr_dump (y);
- printf ("x=");
- mpf_div_2exp (x, x, e);
- mpf_dump (x);
- exit (1);
- }
-
- /* test with 2^(e) */
- mpfr_set_ui (y, 1, GMP_RNDN);
- mpfr_mul_2exp (y, y, e, GMP_RNDN);
- mpfr_get_f (x, y, GMP_RNDN);
- mpf_div_2exp (x, x, e);
- if (mpf_cmp_ui (x, 1) != 0)
- {
- printf ("Error: mpfr_get_f(x,y,GMP_RNDN) fails\n");
- printf ("y=");
- mpfr_dump (y);
- printf ("x=");
- mpf_mul_2exp (x, x, e);
- mpf_dump (x);
- exit (1);
- }
- }
-
- /* Bug reported by Yury Lukach on 2006-04-05 */
- mpfr_set_prec (y, 32);
- mpfr_set_prec (z, 32);
- mpf_set_prec (x, 32);
- mpfr_set_ui_2exp (y, 0xc1234567, -30, GMP_RNDN);
- mpfr_get_f (x, y, GMP_RNDN);
- inex = mpfr_set_f (z, x, GMP_RNDN);
- if (inex || ! mpfr_equal_p (y, z))
- {
- printf ("Error in mpfr_get_f:\n inex = %d, y = ", inex);
- mpfr_dump (z);
- printf ("Expected:\n inex = 0, y = ");
- mpfr_dump (y);
- exit (1);
- }
-
- mpfr_clear (y);
- mpfr_clear (z);
- mpf_clear (x);
-
- prec_test ();
-
- tests_end_mpfr ();
- return 0;
-}
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