97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
/*=============================================================================
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This file is part of FLINT.
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FLINT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FLINT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FLINT; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2011 Fredrik Johansson
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******************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <gmp.h>
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#include "flint.h"
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#include "nmod_mat.h"
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#include "nmod_vec.h"
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#include "ulong_extras.h"
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int
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main(void)
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{
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slong m, n, mod, rep;
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FLINT_TEST_INIT(state);
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flint_printf("scalar_mul....");
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fflush(stdout);
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for (rep = 0; rep < 1000 * flint_test_multiplier(); rep++)
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{
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nmod_mat_t A, B, C, D;
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mp_limb_t c;
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m = n_randint(state, 20);
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n = n_randint(state, 20);
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mod = n_randtest_not_zero(state);
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c = n_randint(state, mod);
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nmod_mat_init(A, m, n, mod);
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nmod_mat_init(B, m, n, mod);
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nmod_mat_init(C, m, n, mod);
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nmod_mat_init(D, m, n, mod);
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nmod_mat_randtest(A, state);
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nmod_mat_randtest(B, state);
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nmod_mat_scalar_mul(C, A, c);
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nmod_mat_scalar_mul(D, A, nmod_sub(c, UWORD(1), A->mod));
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/* c*A - (c-1)*A == A */
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nmod_mat_sub(D, C, D);
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if (!nmod_mat_equal(A, D))
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{
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flint_printf("FAIL\n");
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abort();
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}
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/* Aliasing */
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nmod_mat_scalar_mul(C, A, c);
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nmod_mat_scalar_mul(A, A, c);
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if (!nmod_mat_equal(A, C))
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{
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flint_printf("FAIL\n");
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abort();
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}
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nmod_mat_clear(A);
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nmod_mat_clear(B);
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nmod_mat_clear(C);
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nmod_mat_clear(D);
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}
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FLINT_TEST_CLEANUP(state);
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flint_printf("PASS\n");
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return 0;
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}
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