Index: gcc/mpfr/tests/tdiv_ui.c |
diff --git a/gcc/mpfr/tests/tdiv_ui.c b/gcc/mpfr/tests/tdiv_ui.c |
deleted file mode 100644 |
index 80f0e3961d1ed96f7a0fcfc207db888785b11c11..0000000000000000000000000000000000000000 |
--- a/gcc/mpfr/tests/tdiv_ui.c |
+++ /dev/null |
@@ -1,237 +0,0 @@ |
-/* Test file for mpfr_div_ui. |
- |
-Copyright 1999, 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 <float.h> |
- |
-#include "mpfr-test.h" |
- |
-static void |
-check (const char *ds, unsigned long u, mp_rnd_t rnd, const char *es) |
-{ |
- mpfr_t x, y; |
- |
- mpfr_init2 (x, 53); |
- mpfr_init2 (y, 53); |
- mpfr_set_str1 (x, ds); |
- mpfr_div_ui (y, x, u, rnd); |
- if (mpfr_cmp_str1 (y, es)) |
- { |
- printf ("mpfr_div_ui failed for x=%s, u=%lu, rnd=%s\n", ds, u, |
- mpfr_print_rnd_mode (rnd)); |
- printf ("expected result is %s, got", es); |
- mpfr_out_str(stdout, 10, 0, y, GMP_RNDN); |
- exit (1); |
- } |
- mpfr_clear (x); |
- mpfr_clear (y); |
-} |
- |
-static void |
-special (void) |
-{ |
- mpfr_t x, y; |
- unsigned xprec, yprec; |
- |
- mpfr_init (x); |
- mpfr_init (y); |
- |
- mpfr_set_prec (x, 32); |
- mpfr_set_prec (y, 32); |
- mpfr_set_ui (x, 1, GMP_RNDN); |
- mpfr_div_ui (y, x, 3, GMP_RNDN); |
- |
- mpfr_set_prec (x, 100); |
- mpfr_set_prec (y, 100); |
- mpfr_urandomb (x, RANDS); |
- mpfr_div_ui (y, x, 123456, GMP_RNDN); |
- mpfr_set_ui (x, 0, GMP_RNDN); |
- mpfr_div_ui (y, x, 123456789, GMP_RNDN); |
- if (mpfr_cmp_ui (y, 0)) |
- { |
- printf ("mpfr_div_ui gives non-zero for 0/ui\n"); |
- exit (1); |
- } |
- |
- /* bug found by Norbert Mueller, 21 Aug 2001 */ |
- mpfr_set_prec (x, 110); |
- mpfr_set_prec (y, 60); |
- mpfr_set_str_binary (x, "0.110101110011111110011111001110011001110111000000111110001000111011000011E-44"); |
- mpfr_div_ui (y, x, 17, GMP_RNDN); |
- mpfr_set_str_binary (x, "0.11001010100101100011101110000001100001010110101001010011011E-48"); |
- if (mpfr_cmp (x, y)) |
- { |
- printf ("Error in x/17 for x=1/16!\n"); |
- printf ("Expected "); |
- mpfr_out_str (stdout, 2, 0, x, GMP_RNDN); |
- printf ("\nGot "); |
- mpfr_out_str (stdout, 2, 0, y, GMP_RNDN); |
- printf ("\n"); |
- exit (1); |
- } |
- |
- /* corner case */ |
- mpfr_set_prec (x, 2 * mp_bits_per_limb); |
- mpfr_set_prec (y, 2); |
- mpfr_set_ui (x, 4, GMP_RNDN); |
- mpfr_nextabove (x); |
- mpfr_div_ui (y, x, 2, GMP_RNDN); /* exactly in the middle */ |
- MPFR_ASSERTN(mpfr_cmp_ui (y, 2) == 0); |
- |
- mpfr_set_prec (x, 3 * mp_bits_per_limb); |
- mpfr_set_prec (y, 2); |
- mpfr_set_ui (x, 2, GMP_RNDN); |
- mpfr_nextabove (x); |
- mpfr_div_ui (y, x, 2, GMP_RNDN); |
- MPFR_ASSERTN(mpfr_cmp_ui (y, 1) == 0); |
- |
- mpfr_set_prec (x, 3 * mp_bits_per_limb); |
- mpfr_set_prec (y, 2); |
- mpfr_set_si (x, -4, GMP_RNDN); |
- mpfr_nextbelow (x); |
- mpfr_div_ui (y, x, 2, GMP_RNDD); |
- MPFR_ASSERTN(mpfr_cmp_si (y, -3) == 0); |
- |
- for (xprec = 53; xprec <= 128; xprec++) |
- { |
- mpfr_set_prec (x, xprec); |
- mpfr_set_str_binary (x, "0.1100100100001111110011111000000011011100001100110111E2"); |
- for (yprec = 53; yprec <= 128; yprec++) |
- { |
- mpfr_set_prec (y, yprec); |
- mpfr_div_ui (y, x, 1, GMP_RNDN); |
- if (mpfr_cmp(x,y)) |
- { |
- printf ("division by 1.0 fails for xprec=%u, yprec=%u\n", xprec, yprec); |
- printf ("expected "); mpfr_print_binary (x); puts (""); |
- printf ("got "); mpfr_print_binary (y); puts (""); |
- exit (1); |
- } |
- } |
- } |
- |
- /* Bug reported by Mark Dickinson, 6 Nov 2007 */ |
- mpfr_set_si (x, 0, GMP_RNDN); |
- mpfr_set_si (y, -1, GMP_RNDN); |
- mpfr_div_ui (y, x, 4, GMP_RNDN); |
- MPFR_ASSERTN(MPFR_IS_ZERO(y) && MPFR_IS_POS(y)); |
- |
- mpfr_clear (x); |
- mpfr_clear (y); |
-} |
- |
-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); |
- mpfr_urandomb (x, RANDS); |
- do |
- { |
- u = randlimb (); |
- } |
- while (u == 0); |
- for (py=2; py<300; py++) |
- { |
- mpfr_set_prec (y, py); |
- mpfr_set_prec (z, py + mp_bits_per_limb); |
- for (rnd = 0; rnd < GMP_RND_MAX; rnd++) |
- { |
- inexact = mpfr_div_ui (y, x, u, (mp_rnd_t) rnd); |
- if (mpfr_mul_ui (z, y, u, (mp_rnd_t) rnd)) |
- { |
- printf ("z <- y * u should be exact for u=%lu\n", u); |
- printf ("y="); mpfr_print_binary (y); puts (""); |
- printf ("z="); mpfr_print_binary (z); puts (""); |
- exit (1); |
- } |
- cmp = mpfr_cmp (z, x); |
- 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 ("x="); mpfr_print_binary (x); puts (""); |
- printf ("y="); mpfr_print_binary (y); puts (""); |
- exit (1); |
- } |
- } |
- } |
- } |
- |
- mpfr_clear (x); |
- mpfr_clear (y); |
- mpfr_clear (z); |
-} |
- |
-#define TEST_FUNCTION mpfr_div_ui |
-#define INTEGER_TYPE unsigned long |
-#define RAND_FUNCTION(x) mpfr_random2(x, MPFR_LIMB_SIZE (x), 1) |
-#include "tgeneric_ui.c" |
- |
-int |
-main (int argc, char **argv) |
-{ |
- mpfr_t x; |
- |
- tests_start_mpfr (); |
- |
- special (); |
- |
- check_inexact (); |
- |
- check("1.0", 3, GMP_RNDN, "3.3333333333333331483e-1"); |
- check("1.0", 3, GMP_RNDZ, "3.3333333333333331483e-1"); |
- check("1.0", 3, GMP_RNDU, "3.3333333333333337034e-1"); |
- check("1.0", 3, GMP_RNDD, "3.3333333333333331483e-1"); |
- check("1.0", 2116118, GMP_RNDN, "4.7256343927890600483e-7"); |
- check("1.098612288668109782", 5, GMP_RNDN, "0.21972245773362195087"); |
- |
- mpfr_init2 (x, 53); |
- mpfr_set_ui (x, 3, GMP_RNDD); |
- mpfr_log (x, x, GMP_RNDD); |
- mpfr_div_ui (x, x, 5, GMP_RNDD); |
- if (mpfr_cmp_str1 (x, "0.21972245773362189536")) |
- { |
- printf ("Error in mpfr_div_ui for x=ln(3), u=5\n"); |
- exit (1); |
- } |
- mpfr_clear (x); |
- |
- test_generic_ui (2, 200, 100); |
- |
- tests_end_mpfr (); |
- return 0; |
-} |