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Diffstat (limited to 'gmp-6.3.0/tests/mpf/reuse.c')
| -rw-r--r-- | gmp-6.3.0/tests/mpf/reuse.c | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/gmp-6.3.0/tests/mpf/reuse.c b/gmp-6.3.0/tests/mpf/reuse.c new file mode 100644 index 0000000..86db5b3 --- /dev/null +++ b/gmp-6.3.0/tests/mpf/reuse.c @@ -0,0 +1,218 @@ +/* Test that routines allow reusing a source variable as destination. + +Copyright 1996, 2000-2002, 2012 Free Software Foundation, Inc. + +This file is part of the GNU MP Library test suite. + +The GNU MP Library test suite is free software; you can redistribute it +and/or modify it under the terms of the GNU 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 test suite 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 General +Public License for more details. + +You should have received a copy of the GNU General Public License along with +the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.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 DLL\n"); + exit (0); +} + + +#else /* ! DLL_EXPORT */ + +#ifndef SIZE +#define SIZE 16 +#endif + +#ifndef EXPO +#define EXPO 32 +#endif + +void dump_abort (const char *, mpf_t, mpf_t); + +typedef void (*dss_func) (mpf_ptr, mpf_srcptr, mpf_srcptr); + +dss_func dss_funcs[] = +{ + mpf_div, mpf_add, mpf_mul, mpf_sub, +}; + +const char *dss_func_names[] = +{ + "mpf_div", "mpf_add", "mpf_mul", "mpf_sub", +}; + +typedef void (*dsi_func) (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, mpf_pow_ui +}; + +const char *dsi_func_names[] = +{ + "mpf_div_ui", "mpf_add_ui", "mpf_mul_ui", "mpf_sub_ui", + "mpf_mul_2exp", "mpf_div_2exp", "mpf_pow_ui" +}; + +typedef void (*dis_func) (mpf_ptr, unsigned long int, mpf_srcptr); + +dis_func dis_funcs[] = +{ + mpf_ui_div, mpf_ui_sub, +}; + +const 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++) + { + unsigned long this_in2i = in2i; + + /* Don't divide by 0. */ + if (i == 0 && this_in2i == 0) /* dsi_funcs[i] == mpf_div_ui */ + continue; + + /* Avoid overflow/underflow in the exponent. */ + if (dsi_funcs[i] == mpf_mul_2exp || dsi_funcs[i] == mpf_div_2exp) + this_in2i %= 0x100000; + else if (dsi_funcs[i] == mpf_pow_ui) + this_in2i %= 0x1000; + + (dsi_funcs[i]) (res1, in1, this_in2i); + + mpf_set (out1, in1); + (dsi_funcs[i]) (out1, out1, this_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 (i == 0 /* dis_funcs[i] == mpf_ui_div */ + && 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 (const 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 (mpf_ptr, mpf_srcptr); +void mpf_sqrt (mpf_ptr, mpf_srcptr); +void mpf_neg (mpf_ptr, mpf_srcptr); +#endif + +#endif /* ! DLL_EXPORT */ |