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Unified Diff: gcc/mpfr/tests/tui_pow.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/tui_pow.c
diff --git a/gcc/mpfr/tests/tui_pow.c b/gcc/mpfr/tests/tui_pow.c
deleted file mode 100644
index 31cd036bedb076f02d272bf5c2eecf8959fa46ef..0000000000000000000000000000000000000000
--- a/gcc/mpfr/tests/tui_pow.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/* Test file for mpfr_ui_pow and mpfr_ui_pow_ui.
-
-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 <limits.h>
-
-#include "mpfr-test.h"
-
-static void
-test1 (void)
-{
- mpfr_t x, y, z, a;
- int res1, res2;
-
- mpfr_init2 (x, 32);
- mpfr_init2 (y, 65);
- mpfr_init2 (z, 17);
- mpfr_init2 (a, 17);
-
- mpfr_set_str_binary (x, "-0.101110001001011011011e-9");
- mpfr_ui_pow (y, 7, x, GMP_RNDN);
-
- mpfr_set_prec (x, 40);
- mpfr_set_str_binary (x, "-0.1100101100101111011001010010110011110110E-1");
- mpfr_set_prec (y, 74);
- mpfr_ui_pow (y, 8, x, GMP_RNDN);
- mpfr_set_prec (x, 74);
- mpfr_set_str_binary (x, "0.11100000010100111101000011111011011010011000011000101011010011010101000011E-1");
- if (mpfr_cmp (x, y))
- {
- printf ("Error for input of 40 bits, output of 74 bits\n");
- exit (1);
- }
-
- /* Check for ui_pow_ui */
- mpfr_ui_pow_ui (x, 0, 1, GMP_RNDN);
- MPFR_ASSERTN(mpfr_cmp_ui (x, 0) == 0 && MPFR_IS_POS (x));
- mpfr_ui_pow_ui (x, 0, 4, GMP_RNDN);
- MPFR_ASSERTN(mpfr_cmp_ui (x, 0) == 0 && MPFR_IS_POS (x));
- res1 = mpfr_ui_pow_ui (z, 17, 42, GMP_RNDD);
- mpfr_set_ui (x, 17, GMP_RNDN);
- mpfr_set_ui (y, 42, GMP_RNDN);
- res2 = mpfr_pow (a, x, y, GMP_RNDD);
- if (mpfr_cmp (z, a) || res1 != res2)
- {
- printf ("Error for ui_pow_ui for 17^42\n"
- "Inexact1 = %d Inexact2 = %d\n", res1, res2);
- mpfr_dump (z);
- mpfr_dump (a);
- exit (1);
- }
- mpfr_set_prec (x, 2);
- mpfr_ui_pow_ui (x, 65537, 65535, GMP_RNDN);
- if (mpfr_cmp_str (x, "0.11E1048562", 2, GMP_RNDN) != 0)
- {
- printf ("Error for ui_pow_ui for 65537 ^65535 with 2 bits of precision\n");
- mpfr_dump (x);
- exit (1);
- }
- mpfr_clear (x);
- mpfr_clear (y);
- mpfr_clear (z);
- mpfr_clear (a);
-}
-
-static void
-check1 (mpfr_ptr x, mp_prec_t prec, unsigned long nt, mp_rnd_t rnd)
-{
- mpfr_t y, z, t;
- int inexact, compare, compare2;
- mp_prec_t yprec;
- mp_exp_t err;
-
- yprec = prec + 10;
-
- mpfr_init (y);
- mpfr_init (z);
- mpfr_init (t);
- mpfr_set_prec (y, yprec);
- mpfr_set_prec (z, prec);
- mpfr_set_prec (t, prec);
-
- compare = mpfr_ui_pow (y, nt, x, rnd);
- err = (rnd == GMP_RNDN) ? yprec + 1 : yprec;
- if (mpfr_can_round (y, err, rnd, rnd, prec))
- {
- mpfr_set (t, y, rnd);
- inexact = mpfr_ui_pow (z, nt, x, rnd);
- if (mpfr_cmp (t, z))
- {
- printf ("results differ for x=");
- mpfr_out_str (stdout, 2, prec, x, GMP_RNDN);
- printf (" n=%lu", nt);
- printf (" prec=%u rnd_mode=%s\n", (unsigned) prec,
- mpfr_print_rnd_mode (rnd));
- printf ("got ");
- mpfr_out_str (stdout, 2, prec, z, GMP_RNDN);
- puts ("");
- printf ("expected ");
- mpfr_out_str (stdout, 2, prec, t, GMP_RNDN);
- puts ("");
- printf ("approx ");
- mpfr_print_binary (y);
- puts ("");
- exit (1);
- }
- compare2 = mpfr_cmp (t, y);
- /* if rounding to nearest, cannot know the sign of t - f(x)
- because of composed rounding: y = o(f(x)) and t = o(y) */
- if ((rnd != GMP_RNDN) && (compare * compare2 >= 0))
- compare = compare + compare2;
- else
- compare = inexact; /* cannot determine sign(t-f(x)) */
- if (((inexact == 0) && (compare != 0)) ||
- ((inexact > 0) && (compare <= 0)) ||
- ((inexact < 0) && (compare >= 0)))
- {
- printf ("Wrong inexact flag for rnd=%s: expected %d, got %d\n",
- mpfr_print_rnd_mode (rnd), compare, inexact);
- printf ("x="); mpfr_print_binary (x); puts ("");
- printf ("y="); mpfr_print_binary (y); puts ("");
- printf ("t="); mpfr_print_binary (t); puts ("");
- exit (1);
- }
- }
-
- mpfr_clear (y);
- mpfr_clear (z);
- mpfr_clear (t);
-}
-
-int
-main (int argc, char *argv[])
-{
- mpfr_t x, y;
- unsigned long int n;
-
- tests_start_mpfr ();
-
- mpfr_init (x);
- mpfr_init (y);
-
- n = randlimb ();
-
- MPFR_SET_INF(x);
- mpfr_ui_pow (y, n, x, GMP_RNDN);
- if(!MPFR_IS_INF(y))
- {
- printf ("evaluation of function in INF does not return INF\n");
- exit (1);
- }
-
- MPFR_CHANGE_SIGN(x);
- mpfr_ui_pow (y, n, x, GMP_RNDN);
- if(!MPFR_IS_ZERO(y))
- {
- printf ("evaluation of function in -INF does not return 0");
- exit (1);
- }
-
- MPFR_SET_NAN(x);
- mpfr_ui_pow (y, n, x, GMP_RNDN);
- if(!MPFR_IS_NAN(y))
- {
- printf ("evaluation of function in NAN does not return NAN");
- exit (1);
- }
-
- test1 ();
-
- {
- mpfr_t z, t;
- mp_prec_t prec;
- mp_rnd_t rnd;
- unsigned int n;
-
- mp_prec_t p0=2, p1=100;
- unsigned int N=20;
-
- mpfr_init2 (z, 38);
- mpfr_init2 (t, 6);
-
- /* check exact power */
- mpfr_set_str_binary (t, "0.110000E5");
- mpfr_ui_pow (z, 3, t, GMP_RNDN);
-
- mpfr_set_prec (x, 2);
- mpfr_set_prec (y, 2);
- mpfr_set_str (x, "-0.5", 10, GMP_RNDZ);
- mpfr_ui_pow (y, 4, x, GMP_RNDD);
- if (mpfr_cmp_ui_2exp(y, 1, -1))
- {
- fprintf (stderr, "Error for 4^(-0.5), prec=2, GMP_RNDD\n");
- fprintf (stderr, "expected 0.5, got ");
- mpfr_out_str (stderr, 2, 0, y, GMP_RNDN);
- fprintf (stderr, "\n");
- exit (1);
- }
-
- /* problem found by Kevin on spe175.testdrive.compaq.com
- (03 Sep 2003) */
- mpfr_set_prec (x, 2);
- mpfr_set_prec (y, 2);
- mpfr_set_str (x, "0.5", 10, GMP_RNDN);
- mpfr_ui_pow (y, 398441521, x, GMP_RNDN);
- if (mpfr_cmp_ui_2exp(y, 1, 14))
- {
- fprintf (stderr, "Error for 398441521^(0.5), prec=2, GMP_RNDN\n");
- fprintf (stderr, "expected 1.0e14, got ");
- mpfr_out_str (stderr, 2, 0, y, GMP_RNDN);
- fprintf (stderr, "\n");
- exit (1);
- }
-
- mpfr_clear (z);
- mpfr_clear (t);
-
- mpfr_set_prec (x, 2);
- mpfr_set_str (x, "0.5", 10, GMP_RNDN);
- check1 (x, 2, 398441521, GMP_RNDN); /* 398441521 = 19961^2 */
-
- /* generic test */
- for (prec = p0; prec <= p1; prec++)
- {
- mpfr_set_prec (x, prec);
- for (n=0; n<N; n++)
- {
- int nt;
- nt = randlimb () & INT_MAX;
- mpfr_urandomb (x, RANDS);
- rnd = RND_RAND ();
- check1 (x, prec, nt, rnd);
- }
- }
- }
-
- mpfr_clear (x);
- mpfr_clear (y);
-
- tests_end_mpfr ();
- return 0;
-}
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