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Diffstat (limited to 'gnu/lib/libgmp/mpz/tests/t-tdiv.c')
-rw-r--r-- | gnu/lib/libgmp/mpz/tests/t-tdiv.c | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/gnu/lib/libgmp/mpz/tests/t-tdiv.c b/gnu/lib/libgmp/mpz/tests/t-tdiv.c deleted file mode 100644 index d646ed8..0000000 --- a/gnu/lib/libgmp/mpz/tests/t-tdiv.c +++ /dev/null @@ -1,118 +0,0 @@ -/* Test mpz_abs, mpz_add, mpz_cmp, mpz_cmp_ui, mpz_tdiv_qr, mpz_tdiv_q, - mpz_tdiv_r, mpz_mul. - -Copyright (C) 1991, 1993, 1994, 1996 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 Library General Public License as published by -the Free Software Foundation; either version 2 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 Library General Public -License for more details. - -You should have received a copy of the GNU Library General Public License -along with the GNU MP Library; see the file COPYING.LIB. If not, write to -the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, -MA 02111-1307, USA. */ - -#include <stdio.h> -#include "gmp.h" -#include "gmp-impl.h" -#include "urandom.h" - -void debug_mp (); - -#ifndef SIZE -#define SIZE 16 -#endif - -main (argc, argv) - int argc; - char **argv; -{ - mpz_t dividend, divisor; - mpz_t quotient, remainder; - mpz_t quotient2, remainder2; - mpz_t temp; - mp_size_t dividend_size, divisor_size; - int i; - int reps = 100000; - - if (argc == 2) - reps = atoi (argv[1]); - - mpz_init (dividend); - mpz_init (divisor); - mpz_init (quotient); - mpz_init (remainder); - mpz_init (quotient2); - mpz_init (remainder2); - mpz_init (temp); - - for (i = 0; i < reps; i++) - { - dividend_size = urandom () % SIZE - SIZE/2; - mpz_random2 (dividend, dividend_size); - - divisor_size = urandom () % SIZE - SIZE/2; - mpz_random2 (divisor, divisor_size); - if (mpz_cmp_ui (divisor, 0) == 0) - continue; - - mpz_tdiv_qr (quotient, remainder, dividend, divisor); - mpz_tdiv_q (quotient2, dividend, divisor); - mpz_tdiv_r (remainder2, dividend, divisor); - - /* First determine that the quotients and remainders computed - with different functions are equal. */ - if (mpz_cmp (quotient, quotient2) != 0) - dump_abort (dividend, divisor); - if (mpz_cmp (remainder, remainder2) != 0) - dump_abort (dividend, divisor); - - /* Check if the sign of the quotient is correct. */ - if (mpz_cmp_ui (quotient, 0) != 0) - if ((mpz_cmp_ui (quotient, 0) < 0) - != ((mpz_cmp_ui (dividend, 0) ^ mpz_cmp_ui (divisor, 0)) < 0)) - dump_abort (dividend, divisor); - - /* Check if the remainder has the same sign as the dividend - (quotient rounded towards 0). */ - if (mpz_cmp_ui (remainder, 0) != 0) - if ((mpz_cmp_ui (remainder, 0) < 0) != (mpz_cmp_ui (dividend, 0) < 0)) - dump_abort (dividend, divisor); - - mpz_mul (temp, quotient, divisor); - mpz_add (temp, temp, remainder); - if (mpz_cmp (temp, dividend) != 0) - dump_abort (dividend, divisor); - - mpz_abs (temp, divisor); - mpz_abs (remainder, remainder); - if (mpz_cmp (remainder, temp) >= 0) - dump_abort (dividend, divisor); - } - - exit (0); -} - -dump_abort (dividend, divisor) - mpz_t dividend, divisor; -{ - fprintf (stderr, "ERROR\n"); - fprintf (stderr, "dividend = "); debug_mp (dividend, -16); - fprintf (stderr, "divisor = "); debug_mp (divisor, -16); - abort(); -} - -void -debug_mp (x, base) - mpz_t x; -{ - mpz_out_str (stderr, base, x); fputc ('\n', stderr); -} |