| /* Test mpz_add, mpz_add_ui, mpz_cmp, mpz_cmp, mpz_mul, mpz_sqrtrem. |
| |
| Copyright 1991, 1993, 1994, 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 "gmp.h" |
| #include "gmp-impl.h" |
| #include "tests.h" |
| |
| void dump_abort __GMP_PROTO ((mpz_t, mpz_t, mpz_t)); |
| void debug_mp __GMP_PROTO ((mpz_t, int)); |
| |
| int |
| main (int argc, char **argv) |
| { |
| mpz_t x2; |
| mpz_t x, rem; |
| mpz_t temp, temp2; |
| mp_size_t x2_size; |
| int i; |
| int reps = 200000; |
| gmp_randstate_ptr rands; |
| mpz_t bs; |
| unsigned long size_range; |
| |
| tests_start (); |
| rands = RANDS; |
| |
| mpz_init (bs); |
| |
| if (argc == 2) |
| reps = atoi (argv[1]); |
| |
| mpz_init (x2); |
| mpz_init (x); |
| mpz_init (rem); |
| mpz_init (temp); |
| mpz_init (temp2); |
| |
| for (i = 0; i < reps; i++) |
| { |
| mpz_urandomb (bs, rands, 32); |
| size_range = mpz_get_ui (bs) % 12 + 2; /* 0..8191 bit operands */ |
| |
| mpz_urandomb (bs, rands, size_range); |
| x2_size = mpz_get_ui (bs); |
| mpz_rrandomb (x2, rands, x2_size); |
| |
| /* printf ("%ld\n", SIZ (x2)); */ |
| |
| mpz_sqrtrem (x, rem, x2); |
| MPZ_CHECK_FORMAT (x); |
| MPZ_CHECK_FORMAT (rem); |
| |
| mpz_mul (temp, x, x); |
| |
| /* Is square of result > argument? */ |
| if (mpz_cmp (temp, x2) > 0) |
| dump_abort (x2, x, rem); |
| |
| mpz_add_ui (temp2, x, 1); |
| mpz_mul (temp2, temp2, temp2); |
| |
| /* Is square of (result + 1) <= argument? */ |
| if (mpz_cmp (temp2, x2) <= 0) |
| dump_abort (x2, x, rem); |
| |
| mpz_add (temp2, temp, rem); |
| |
| /* Is the remainder wrong? */ |
| if (mpz_cmp (x2, temp2) != 0) |
| dump_abort (x2, x, rem); |
| } |
| |
| mpz_clear (bs); |
| mpz_clear (x2); |
| mpz_clear (x); |
| mpz_clear (rem); |
| mpz_clear (temp); |
| mpz_clear (temp2); |
| |
| tests_end (); |
| exit (0); |
| } |
| |
| void |
| dump_abort (mpz_t x2, mpz_t x, mpz_t rem) |
| { |
| fprintf (stderr, "ERROR\n"); |
| fprintf (stderr, "x2 = "); debug_mp (x2, -16); |
| fprintf (stderr, "x = "); debug_mp (x, -16); |
| fprintf (stderr, "remainder = "); debug_mp (rem, -16); |
| abort(); |
| } |
| |
| void |
| debug_mp (mpz_t x, int base) |
| { |
| mpz_out_str (stderr, base, x); fputc ('\n', stderr); |
| } |