arb/acb/test/t-exp.c

84 lines
2.4 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) 2012 Fredrik Johansson
******************************************************************************/
#include "acb.h"
int main()
{
slong iter;
flint_rand_t state;
flint_printf("exp....");
fflush(stdout);
flint_randinit(state);
/* check exp(a+b) = exp(a)*exp(b) */
for (iter = 0; iter < 10000; iter++)
{
acb_t a, b, c, d, e;
slong prec;
acb_init(a);
acb_init(b);
acb_init(c);
acb_init(d);
acb_init(e);
acb_randtest(a, state, 1 + n_randint(state, 200), 3);
acb_randtest(b, state, 1 + n_randint(state, 200), 3);
acb_randtest(c, state, 1 + n_randint(state, 200), 3);
prec = 2 + n_randint(state, 200);
acb_add(c, a, b, prec);
acb_exp(c, c, prec);
acb_exp(d, a, prec);
acb_exp(e, b, prec);
acb_mul(d, d, e, prec);
if (!acb_overlaps(c, d))
{
flint_printf("FAIL: overlap\n\n");
flint_printf("a = "); acb_print(a); flint_printf("\n\n");
flint_printf("b = "); acb_print(b); flint_printf("\n\n");
flint_printf("c = "); acb_print(c); flint_printf("\n\n");
flint_printf("d = "); acb_print(d); flint_printf("\n\n");
abort();
}
acb_clear(a);
acb_clear(b);
acb_clear(c);
acb_clear(d);
acb_clear(e);
}
flint_randclear(state);
flint_cleanup();
flint_printf("PASS\n");
return EXIT_SUCCESS;
}