reuse.c
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上传日期:2022-08-06
资源大小:2570k
文件大小:5k
- /* Test that routines allow reusing a source variable as destination.
- Copyright 1996, 2000, 2001, 2002 Free Software Foundation, Inc.
- This file is part of the GNU MP Library.
- The GNU MP 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 3 of the License, or (at your
- option) any later version.
- The GNU MP 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 MP Library. If not, see http://www.gnu.org/licenses/. */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include "gmp.h"
- #include "gmp-impl.h"
- #include "tests.h"
- #if __GMP_LIBGMP_DLL
- /* FIXME: When linking to a DLL libgmp, mpf_add etc can't be used as
- initializers for global variables because they're effectively global
- variables (function pointers) themselves. Perhaps calling a test
- function successively with mpf_add etc would be better. */
- int
- main (void)
- {
- printf ("Test suppressed for windows DLLn");
- exit (0);
- }
- #else /* ! DLL_EXPORT */
- #ifndef SIZE
- #define SIZE 16
- #endif
- #ifndef EXPO
- #define EXPO 32
- #endif
- void dump_abort __GMP_PROTO ((char *, mpf_t, mpf_t));
- typedef void (*dss_func) __GMP_PROTO ((mpf_ptr, mpf_srcptr, mpf_srcptr));
- dss_func dss_funcs[] =
- {
- mpf_div, mpf_add, mpf_mul, mpf_sub,
- };
- char *dss_func_names[] =
- {
- "mpf_div", "mpf_add", "mpf_mul", "mpf_sub",
- };
- typedef void (*dsi_func) __GMP_PROTO ((mpf_ptr, mpf_srcptr, unsigned long int));
- dsi_func dsi_funcs[] =
- {
- mpf_div_ui, mpf_add_ui, mpf_mul_ui, mpf_sub_ui,
- mpf_mul_2exp, mpf_div_2exp
- };
- char *dsi_func_names[] =
- {
- "mpf_div_ui", "mpf_add_ui", "mpf_mul_ui", "mpf_sub_ui",
- "mpf_mul_2exp", "mpf_div_2exp"
- };
- typedef void (*dis_func) __GMP_PROTO ((mpf_ptr, unsigned long int, mpf_srcptr));
- dis_func dis_funcs[] =
- {
- mpf_ui_div, mpf_ui_sub,
- };
- char *dis_func_names[] =
- {
- "mpf_ui_div", "mpf_ui_sub",
- };
- int
- main (int argc, char **argv)
- {
- int i;
- int pass, reps = 10000;
- mpf_t in1, in2, out1;
- unsigned long int in1i, in2i;
- mpf_t res1, res2, res3;
- mp_size_t bprec = 100;
- tests_start ();
- if (argc > 1)
- {
- reps = strtol (argv[1], 0, 0);
- if (argc > 2)
- bprec = strtol (argv[2], 0, 0);
- }
- mpf_set_default_prec (bprec);
- mpf_init (in1);
- mpf_init (in2);
- mpf_init (out1);
- mpf_init (res1);
- mpf_init (res2);
- mpf_init (res3);
- for (pass = 1; pass <= reps; pass++)
- {
- mpf_random2 (in1, urandom () % SIZE - SIZE/2, urandom () % EXPO);
- mpf_random2 (in2, urandom () % SIZE - SIZE/2, urandom () % EXPO);
- for (i = 0; i < sizeof (dss_funcs) / sizeof (dss_func); i++)
- {
- /* Don't divide by 0. */
- if (i == 0 && mpf_cmp_ui (in2, 0) == 0)
- continue;
- (dss_funcs[i]) (res1, in1, in2);
- mpf_set (out1, in1);
- (dss_funcs[i]) (out1, out1, in2);
- mpf_set (res2, out1);
- mpf_set (out1, in2);
- (dss_funcs[i]) (out1, in1, out1);
- mpf_set (res3, out1);
- if (mpf_cmp (res1, res2) != 0)
- dump_abort (dss_func_names[i], res1, res2);
- if (mpf_cmp (res1, res3) != 0)
- dump_abort (dss_func_names[i], res1, res3);
- }
- in2i = urandom ();
- for (i = 0; i < sizeof (dsi_funcs) / sizeof (dsi_func); i++)
- {
- /* Don't divide by 0. */
- if (strcmp (dsi_func_names[i], "mpf_div_ui") == 0 && in2i == 0)
- continue;
- (dsi_funcs[i]) (res1, in1, in2i);
- mpf_set (out1, in1);
- (dsi_funcs[i]) (out1, out1, in2i);
- mpf_set (res2, out1);
- if (mpf_cmp (res1, res2) != 0)
- dump_abort (dsi_func_names[i], res1, res2);
- }
- in1i = urandom ();
- for (i = 0; i < sizeof (dis_funcs) / sizeof (dis_func); i++)
- {
- /* Don't divide by 0. */
- if (strcmp (dis_func_names[i], "mpf_ui_div") == 0
- && mpf_cmp_ui (in2, 0) == 0)
- continue;
- (dis_funcs[i]) (res1, in1i, in2);
- mpf_set (out1, in2);
- (dis_funcs[i]) (out1, in1i, out1);
- mpf_set (res2, out1);
- if (mpf_cmp (res1, res2) != 0)
- dump_abort (dis_func_names[i], res1, res2);
- }
- }
- mpf_clear (in1);
- mpf_clear (in2);
- mpf_clear (out1);
- mpf_clear (res1);
- mpf_clear (res2);
- mpf_clear (res3);
- tests_end ();
- exit (0);
- }
- void
- dump_abort (char *name, mpf_t res1, mpf_t res2)
- {
- printf ("failure in %s:n", name);
- mpf_dump (res1);
- mpf_dump (res2);
- abort ();
- }
- #if 0
- void mpf_abs __GMP_PROTO ((mpf_ptr, mpf_srcptr));
- void mpf_sqrt __GMP_PROTO ((mpf_ptr, mpf_srcptr));
- void mpf_neg __GMP_PROTO ((mpf_ptr, mpf_srcptr));
- #endif
- #endif /* ! DLL_EXPORT */