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974e12c1f0
Old version was 3.1.2 and is quite old: 2013-03-13 A lot has happened since then 4.0.1 is from 2018-02-07
121 lines
2.9 KiB
C
121 lines
2.9 KiB
C
/* talloc-cache -- test file concerning memory allocation and cache
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Copyright 2016-2018 Free Software Foundation, Inc.
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Contributed by the AriC and Caramba projects, INRIA.
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This file is part of the GNU MPFR Library.
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The GNU MPFR Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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The GNU MPFR Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see
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http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
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51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
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#include <stdlib.h>
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#include "mpfr-test.h"
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#define A 4096
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#define I 10000
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/* Variable v is used to check that the allocator is the current GMP one.
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The assertions on v in would typically fail with MPFR 3.1.6, where the
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allocation functions are memorized the first time they are seen. */
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static int v = 0;
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static void *
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my_alloc1 (size_t s)
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{
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void *p = malloc (s + A);
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MPFR_ASSERTN (v == 1);
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*(int *) p = 1;
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return (void *) ((char *) p + A);
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}
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static void *
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my_realloc1 (void *p, size_t t, size_t s)
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{
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p = (void *) ((char *) p - A);
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MPFR_ASSERTN (v == 1);
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MPFR_ASSERTN (*(int *) p == 1);
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return (void *) ((char *) realloc (p, s + A) + A);
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}
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static void
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my_free1 (void *p, size_t t)
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{
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p = (void *) ((char *) p - A);
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MPFR_ASSERTN (v == 1);
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MPFR_ASSERTN (*(int *) p == 1);
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free (p);
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}
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static void *
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my_alloc2 (size_t s)
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{
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void *p = malloc (s + A);
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MPFR_ASSERTN (v == 2);
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*(int *) p = 2;
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return (void *) ((char *) p + A);
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}
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static void *
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my_realloc2 (void *p, size_t t, size_t s)
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{
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p = (void *) ((char *) p - A);
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MPFR_ASSERTN (v == 2);
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MPFR_ASSERTN (*(int *) p == 2);
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return (void *) ((char *) realloc (p, s + A) + A);
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}
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static void
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my_free2 (void *p, size_t t)
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{
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p = (void *) ((char *) p - A);
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MPFR_ASSERTN (v == 2);
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MPFR_ASSERTN (*(int *) p == 2);
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free (p);
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}
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int
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main (void)
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{
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mpfr_t x;
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int err;
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tests_memory_disabled = 2;
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tests_start_mpfr ();
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err = mpfr_mp_memory_cleanup ();
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MPFR_ASSERTN (err == 0);
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mp_set_memory_functions (my_alloc1, my_realloc1, my_free1);
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v = 1;
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mpfr_init2 (x, 53);
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mpfr_set_ui (x, I, MPFR_RNDN);
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mpfr_sin (x, x, MPFR_RNDN);
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mpfr_clear (x);
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err = mpfr_mp_memory_cleanup ();
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MPFR_ASSERTN (err == 0);
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mp_set_memory_functions (my_alloc2, my_realloc2, my_free2);
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v = 2;
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mpfr_init2 (x, 1000);
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mpfr_set_ui (x, I, MPFR_RNDN);
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mpfr_sin (x, x, MPFR_RNDN);
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mpfr_clear (x);
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tests_end_mpfr ();
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return 0;
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}
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