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

55 lines
1.3 KiB
C

/*
Copyright (C) 2012 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 "fmpr.h"
int main()
{
slong iter;
flint_rand_t state;
flint_printf("get_d....");
fflush(stdout);
flint_randinit(state);
/* test exact roundtrip */
for (iter = 0; iter < 100000 * arb_test_multiplier(); iter++)
{
fmpr_t x, z;
double y;
fmpr_init(x);
fmpr_init(z);
fmpr_randtest_special(x, state, 53, 8);
y = fmpr_get_d(x, FMPR_RND_DOWN);
fmpr_set_d(z, y);
if (!fmpr_equal(x, z))
{
flint_printf("FAIL:\n\n");
flint_printf("x = "); fmpr_print(x); flint_printf("\n\n");
flint_printf("y = %.17g\n\n", y);
flint_printf("z = "); fmpr_print(z); flint_printf("\n\n");
abort();
}
fmpr_clear(x);
fmpr_clear(z);
}
flint_randclear(state);
flint_cleanup();
flint_printf("PASS\n");
return EXIT_SUCCESS;
}