/* Copyright (C) 2010 William Hart This file is part of FLINT. FLINT is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License (LGPL) as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. See . */ #include #include #include #include "flint.h" #include "nmod_vec.h" #include "nmod_poly.h" #include "ulong_extras.h" int main(void) { int i, result; FLINT_TEST_INIT(state); flint_printf("sub...."); fflush(stdout); /* Check a - b = a + neg(b) */ for (i = 0; i < 1000 * flint_test_multiplier(); i++) { nmod_poly_t a, b, c, d; mp_limb_t n = n_randtest_not_zero(state); nmod_poly_init(a, n); nmod_poly_init(b, n); nmod_poly_init(c, n); nmod_poly_init(d, n); nmod_poly_randtest(a, state, n_randint(state, 100)); nmod_poly_randtest(b, state, n_randint(state, 100)); nmod_poly_sub(c, a, b); nmod_poly_neg(b, b); nmod_poly_add(d, a, b); result = (nmod_poly_equal(d, d)); if (!result) { flint_printf("FAIL:\n"); nmod_poly_print(a), flint_printf("\n\n"); nmod_poly_print(b), flint_printf("\n\n"); nmod_poly_print(c), flint_printf("\n\n"); nmod_poly_print(d), flint_printf("\n\n"); abort(); } nmod_poly_clear(a); nmod_poly_clear(b); nmod_poly_clear(c); nmod_poly_clear(d); } /* Check aliasing of a and c */ for (i = 0; i < 1000 * flint_test_multiplier(); i++) { nmod_poly_t a, b, c; mp_limb_t n = n_randtest_not_zero(state); nmod_poly_init(a, n); nmod_poly_init(b, n); nmod_poly_init(c, n); nmod_poly_randtest(a, state, n_randint(state, 100)); nmod_poly_randtest(b, state, n_randint(state, 100)); nmod_poly_sub(c, a, b); nmod_poly_sub(a, a, b); result = (nmod_poly_equal(a, c)); if (!result) { flint_printf("FAIL:\n"); nmod_poly_print(a), flint_printf("\n\n"); nmod_poly_print(b), flint_printf("\n\n"); nmod_poly_print(c), flint_printf("\n\n"); abort(); } nmod_poly_clear(a); nmod_poly_clear(b); nmod_poly_clear(c); } /* Check aliasing of b and c */ for (i = 0; i < 1000 * flint_test_multiplier(); i++) { nmod_poly_t a, b, c; mp_limb_t n = n_randtest_not_zero(state); nmod_poly_init(a, n); nmod_poly_init(b, n); nmod_poly_init(c, n); nmod_poly_randtest(a, state, n_randint(state, 100)); nmod_poly_randtest(b, state, n_randint(state, 100)); nmod_poly_sub(c, a, b); nmod_poly_sub(b, a, b); result = (nmod_poly_equal(b, c)); if (!result) { flint_printf("FAIL:\n"); nmod_poly_print(a), flint_printf("\n\n"); nmod_poly_print(b), flint_printf("\n\n"); nmod_poly_print(c), flint_printf("\n\n"); abort(); } nmod_poly_clear(a); nmod_poly_clear(b); nmod_poly_clear(c); } FLINT_TEST_CLEANUP(state); flint_printf("PASS\n"); return 0; }