| /* Test mpz_lcm and mpz_lcm_ui. |
| |
| Copyright 2001 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" |
| |
| |
| void |
| check_all (mpz_ptr want, mpz_srcptr x_orig, mpz_srcptr y_orig) |
| { |
| mpz_t got, x, y; |
| int negx, negy, swap, inplace; |
| |
| mpz_init (got); |
| mpz_init_set (x, x_orig); |
| mpz_init_set (y, y_orig); |
| |
| for (swap = 0; swap < 2; swap++) |
| { |
| mpz_swap (x, y); |
| |
| for (negx = 0; negx < 2; negx++) |
| { |
| mpz_neg (x, x); |
| |
| for (negy = 0; negy < 2; negy++) |
| { |
| mpz_neg (y, y); |
| |
| for (inplace = 0; inplace <= 1; inplace++) |
| { |
| if (inplace) |
| { mpz_set (got, x); mpz_lcm (got, got, y); } |
| else |
| mpz_lcm (got, x, y); |
| MPZ_CHECK_FORMAT (got); |
| |
| if (mpz_cmp (got, want) != 0) |
| { |
| printf ("mpz_lcm wrong, inplace=%d\n", inplace); |
| fail: |
| mpz_trace ("x", x); |
| mpz_trace ("y", y); |
| mpz_trace ("got", got); |
| mpz_trace ("want", want); |
| abort (); |
| } |
| |
| if (mpz_fits_ulong_p (y)) |
| { |
| unsigned long yu = mpz_get_ui (y); |
| if (inplace) |
| { mpz_set (got, x); mpz_lcm_ui (got, got, yu); } |
| else |
| mpz_lcm_ui (got, x, yu); |
| |
| if (mpz_cmp (got, want) != 0) |
| { |
| printf ("mpz_lcm_ui wrong, inplace=%d\n", inplace); |
| printf ("yu=%lu\n", yu); |
| goto fail; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| mpz_clear (got); |
| mpz_clear (x); |
| mpz_clear (y); |
| } |
| |
| |
| void |
| check_primes (void) |
| { |
| static unsigned long prime[] = { |
| 2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97, |
| 101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181, |
| 191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277, |
| 281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383, |
| 389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487, |
| }; |
| mpz_t want, x, y; |
| int i; |
| |
| mpz_init (want); |
| mpz_init (x); |
| mpz_init (y); |
| |
| /* New prime each time. */ |
| mpz_set_ui (want, 1L); |
| for (i = 0; i < numberof (prime); i++) |
| { |
| mpz_set (x, want); |
| mpz_set_ui (y, prime[i]); |
| mpz_mul_ui (want, want, prime[i]); |
| check_all (want, x, y); |
| } |
| |
| /* Old prime each time. */ |
| mpz_set (x, want); |
| for (i = 0; i < numberof (prime); i++) |
| { |
| mpz_set_ui (y, prime[i]); |
| check_all (want, x, y); |
| } |
| |
| /* One old, one new each time. */ |
| mpz_set_ui (want, prime[0]); |
| for (i = 1; i < numberof (prime); i++) |
| { |
| mpz_set (x, want); |
| mpz_set_ui (y, prime[i] * prime[i-1]); |
| mpz_mul_ui (want, want, prime[i]); |
| check_all (want, x, y); |
| } |
| |
| /* Triplets with A,B in x and B,C in y. */ |
| mpz_set_ui (want, 1L); |
| mpz_set_ui (x, 1L); |
| mpz_set_ui (y, 1L); |
| for (i = 0; i+2 < numberof (prime); i += 3) |
| { |
| mpz_mul_ui (want, want, prime[i]); |
| mpz_mul_ui (want, want, prime[i+1]); |
| mpz_mul_ui (want, want, prime[i+2]); |
| |
| mpz_mul_ui (x, x, prime[i]); |
| mpz_mul_ui (x, x, prime[i+1]); |
| |
| mpz_mul_ui (y, y, prime[i+1]); |
| mpz_mul_ui (y, y, prime[i+2]); |
| |
| check_all (want, x, y); |
| } |
| |
| |
| mpz_clear (want); |
| mpz_clear (x); |
| mpz_clear (y); |
| } |
| |
| |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| tests_start (); |
| |
| check_primes (); |
| |
| tests_end (); |
| exit (0); |
| } |