arb/acb_poly/test/t-shift_left_right.c
2015-11-05 17:51:23 +00:00

126 lines
3.5 KiB
C

/*=============================================================================
This file is part of ARB.
ARB is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
ARB 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with ARB; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2009 William Hart
Copyright (C) 2013 Fredrik Johansson
******************************************************************************/
#include "acb_poly.h"
int
main(void)
{
int i, result;
flint_rand_t state;
printf("shift_left/right....");
fflush(stdout);
flint_randinit(state);
/* Check aliasing of a and b for left shift */
for (i = 0; i < 1000; i++)
{
acb_poly_t a, b;
slong shift = n_randint(state, 100);
acb_poly_init(a);
acb_poly_init(b);
acb_poly_randtest(a, state, n_randint(state, 100), 2 + n_randint(state, 200), 10);
acb_poly_shift_left(b, a, shift);
acb_poly_shift_left(a, a, shift);
result = (acb_poly_equal(a, b));
if (!result)
{
printf("FAIL:\n");
acb_poly_printd(a, 10), printf("\n\n");
acb_poly_printd(b, 10), printf("\n\n");
abort();
}
acb_poly_clear(a);
acb_poly_clear(b);
}
/* Check aliasing of a and b for right shift */
for (i = 0; i < 1000; i++)
{
acb_poly_t a, b;
slong shift = n_randint(state, 100);
acb_poly_init(a);
acb_poly_init(b);
acb_poly_randtest(a, state, n_randint(state, 100), 2 + n_randint(state, 200), 10);
acb_poly_shift_right(b, a, shift);
acb_poly_shift_right(a, a, shift);
result = (acb_poly_equal(a, b));
if (!result)
{
printf("FAIL:\n");
acb_poly_printd(a, 10), printf("\n\n");
acb_poly_printd(b, 10), printf("\n\n");
abort();
}
acb_poly_clear(a);
acb_poly_clear(b);
}
/* Check shift left then right does nothing */
for (i = 0; i < 1000; i++)
{
acb_poly_t a, b, c;
slong shift = n_randint(state, 100);
acb_poly_init(a);
acb_poly_init(b);
acb_poly_init(c);
acb_poly_randtest(a, state, n_randint(state, 100), 2 + n_randint(state, 200), 10);
acb_poly_shift_left(b, a, shift);
acb_poly_shift_right(c, b, shift);
result = (acb_poly_equal(c, a));
if (!result)
{
printf("FAIL:\n");
acb_poly_printd(a, 10), printf("\n\n");
acb_poly_printd(b, 10), printf("\n\n");
acb_poly_printd(c, 10), printf("\n\n");
abort();
}
acb_poly_clear(a);
acb_poly_clear(b);
acb_poly_clear(c);
}
flint_randclear(state);
flint_cleanup();
printf("PASS\n");
return 0;
}