arb/mag/test/t-mul_2exp_si.c
2016-04-26 17:20:05 +02:00

71 lines
1.6 KiB
C

/*
Copyright (C) 2014 Fredrik Johansson
This file is part of Arb.
Arb 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 <http://www.gnu.org/licenses/>.
*/
#include "mag.h"
#include "flint/long_extras.h"
int main()
{
slong iter;
flint_rand_t state;
flint_printf("mul_2exp_si....");
fflush(stdout);
flint_randinit(state);
for (iter = 0; iter < 100000 * arb_test_multiplier(); iter++)
{
fmpr_t x, y, z;
mag_t xb, yb;
slong e;
fmpr_init(x);
fmpr_init(y);
fmpr_init(z);
mag_init(xb);
mag_init(yb);
mag_randtest_special(xb, state, 100);
e = z_randtest(state);
mag_get_fmpr(x, xb);
mag_mul_2exp_si(yb, xb, e);
fmpr_mul_2exp_si(y, x, e);
mag_get_fmpr(z, yb);
MAG_CHECK_BITS(yb)
if (!fmpr_equal(z, y))
{
flint_printf("FAIL\n\n");
flint_printf("x = "); fmpr_printd(x, 15); flint_printf("\n\n");
flint_printf("y = "); fmpr_printd(y, 15); flint_printf("\n\n");
flint_printf("z = "); fmpr_printd(z, 15); flint_printf("\n\n");
abort();
}
fmpr_clear(x);
fmpr_clear(y);
fmpr_clear(z);
mag_clear(xb);
mag_clear(yb);
}
flint_randclear(state);
flint_cleanup();
flint_printf("PASS\n");
return EXIT_SUCCESS;
}