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Unified Diff: gcc/mpfr/tests/tui_div.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_div.c
diff --git a/gcc/mpfr/tests/tui_div.c b/gcc/mpfr/tests/tui_div.c
deleted file mode 100644
index d4f596b32477e96056dbbc3f71f78e1823758259..0000000000000000000000000000000000000000
--- a/gcc/mpfr/tests/tui_div.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/* Test file for mpfr_ui_div.
-
-Copyright 2000, 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"
-
-/* checks that y/x gives the right result with 53 bits of precision */
-static void
-check (unsigned long y, const char *xs, mp_rnd_t rnd_mode, const char *zs)
-{
- mpfr_t xx, zz;
-
- mpfr_inits2 (53, xx, zz, (mpfr_ptr) 0);
- mpfr_set_str1 (xx, xs);
- mpfr_ui_div (zz, y, xx, rnd_mode);
- if (mpfr_cmp_str1(zz, zs))
- {
- printf ("expected quotient is %s, got ", zs);
- mpfr_out_str (stdout, 10, 0, zz, GMP_RNDN);
- printf ("mpfr_ui_div failed for y=%lu x=%s with rnd_mode=%s\n",
- y, xs, mpfr_print_rnd_mode (rnd_mode));
- exit (1);
- }
- mpfr_clears (xx, zz, (mpfr_ptr) 0);
-}
-
-static void
-check_inexact (void)
-{
- mpfr_t x, y, z;
- mp_prec_t px, py;
- int inexact, cmp;
- unsigned long int u;
- int rnd;
-
- mpfr_init (x);
- mpfr_init (y);
- mpfr_init (z);
-
- for (px=2; px<300; px++)
- {
- mpfr_set_prec (x, px);
- do
- {
- mpfr_urandomb (x, RANDS);
- }
- while (mpfr_cmp_ui (x, 0) == 0);
- u = randlimb ();
- for (py=2; py<300; py++)
- {
- mpfr_set_prec (y, py);
- mpfr_set_prec (z, py + px);
- for (rnd = 0; rnd < GMP_RND_MAX; rnd++)
- {
- inexact = mpfr_ui_div (y, u, x, (mp_rnd_t) rnd);
- if (mpfr_mul (z, y, x, (mp_rnd_t) rnd))
- {
- printf ("z <- y * x should be exact\n");
- exit (1);
- }
- cmp = mpfr_cmp_ui (z, u);
- if (((inexact == 0) && (cmp != 0)) ||
- ((inexact > 0) && (cmp <= 0)) ||
- ((inexact < 0) && (cmp >= 0)))
- {
- printf ("Wrong inexact flag for u=%lu, rnd=%s\n",
- u, mpfr_print_rnd_mode ((mp_rnd_t) rnd));
- printf ("expected %d, got %d\n", cmp, inexact);
- printf ("x="); mpfr_print_binary (x); puts ("");
- printf ("y="); mpfr_print_binary (y); puts ("");
- printf ("y*x="); mpfr_print_binary (z); puts ("");
- exit (1);
- }
- }
- }
- }
-
- mpfr_clear (x);
- mpfr_clear (y);
- mpfr_clear (z);
-}
-
-static void
-check_nan (void)
-{
- mpfr_t d, q;
-
- mpfr_init2 (d, 100L);
- mpfr_init2 (q, 100L);
-
- /* 1/+inf == 0 */
- MPFR_CLEAR_FLAGS (d);
- MPFR_SET_INF (d);
- MPFR_SET_POS (d);
- MPFR_ASSERTN (mpfr_ui_div (q, 1L, d, GMP_RNDZ) == 0); /* exact */
- MPFR_ASSERTN (mpfr_number_p (q));
- MPFR_ASSERTN (mpfr_sgn (q) == 0);
-
- /* 1/-inf == -0 */
- MPFR_CLEAR_FLAGS (d);
- MPFR_SET_INF (d);
- MPFR_SET_NEG (d);
- MPFR_ASSERTN (mpfr_ui_div (q, 1L, d, GMP_RNDZ) == 0); /* exact */
- MPFR_ASSERTN (mpfr_number_p (q));
- MPFR_ASSERTN (mpfr_sgn (q) == 0);
-
- /* 1/nan == nan */
- MPFR_SET_NAN (d);
- MPFR_ASSERTN (mpfr_ui_div (q, 1L, d, GMP_RNDZ) == 0); /* exact */
- MPFR_ASSERTN (mpfr_nan_p (q));
-
- /* 0/0 == nan */
- mpfr_set_ui (d, 0L, GMP_RNDN);
- MPFR_ASSERTN (mpfr_ui_div (q, 0L, d, GMP_RNDZ) == 0); /* exact */
- MPFR_ASSERTN (mpfr_nan_p (q));
-
- /* 1/+0 = +inf */
- mpfr_set_ui (d, 0L, GMP_RNDN);
- MPFR_ASSERTN (mpfr_ui_div (q, 1L, d, GMP_RNDZ) == 0); /* exact */
- MPFR_ASSERTN (mpfr_inf_p (q) && mpfr_sgn (q) > 0);
-
- /* 1/-0 = -inf */
- mpfr_set_ui (d, 0L, GMP_RNDN);
- mpfr_neg (d, d, GMP_RNDN);
- MPFR_ASSERTN (mpfr_ui_div (q, 1L, d, GMP_RNDZ) == 0); /* exact */
- MPFR_ASSERTN (mpfr_inf_p (q) && mpfr_sgn (q) < 0);
-
- /* 0/1 = +0 */
- mpfr_set_ui (d, 1L, GMP_RNDN);
- MPFR_ASSERTN (mpfr_ui_div (q, 0L, d, GMP_RNDZ) == 0); /* exact */
- MPFR_ASSERTN (mpfr_cmp_ui (q, 0) == 0 && MPFR_IS_POS (q));
-
- /* 0/-1 = -0 */
- mpfr_set_si (d, -1, GMP_RNDN);
- MPFR_ASSERTN (mpfr_ui_div (q, 0L, d, GMP_RNDZ) == 0); /* exact */
- MPFR_ASSERTN (mpfr_cmp_ui (q, 0) == 0 && MPFR_IS_NEG (q));
-
- mpfr_clear (d);
- mpfr_clear (q);
-}
-
-static int
-mpfr_inv (mpfr_ptr y, mpfr_srcptr x, mp_rnd_t r)
-{
- return mpfr_ui_div (y, 1, x, r);
-}
-
-int
-main (int argc, char *argv[])
-{
- tests_start_mpfr ();
-
- check_nan ();
- check_inexact ();
- check(948002822, "1.22191250737771397120e+20", GMP_RNDN,
- "7.758352715731357946e-12");
- check(1976245324, "1.25296395864546893357e+232", GMP_RNDZ,
- "1.5772563211925444801e-223");
- check(740454110, "2.11496253355831863313e+183", GMP_RNDZ,
- "3.5010270784996976041e-175");
- check(1690540942, "1.28278599852446657468e-276", GMP_RNDU,
- "1.3178666932321966062e285");
- check(1476599377, "-2.14191393656148625995e+305", GMP_RNDD,
- "-6.8938315017943889615e-297");
-
- /* inv is for 1/x */
- data_check ("data/inv", mpfr_inv, "mpfr_ui_div(1,x)");
-
- tests_end_mpfr ();
- return 0;
-}
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