arb/acb_modular/test/t-psl2z_inv.c

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/*=============================================================================
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) 2014 Fredrik Johansson
******************************************************************************/
#include "acb_modular.h"
int main()
{
long iter;
flint_rand_t state;
printf("psl2z_inv....");
fflush(stdout);
flint_randinit(state);
for (iter = 0; iter < 10000; iter++)
{
psl2z_t f, g, h, i;
psl2z_init(f);
psl2z_init(g);
psl2z_init(h);
psl2z_init(i);
psl2z_randtest(f, state, n_randint(state, 100));
psl2z_randtest(g, state, n_randint(state, 100));
psl2z_randtest(h, state, n_randint(state, 100));
psl2z_inv(g, f);
psl2z_mul(h, f, g);
psl2z_one(i);
if (!psl2z_equal(h, i) || !psl2z_is_correct(g))
{
printf("FAIL\n");
printf("f = "); psl2z_print(f); printf("\n");
printf("g = "); psl2z_print(g); printf("\n");
printf("h = "); psl2z_print(h); printf("\n");
printf("i = "); psl2z_print(i); printf("\n");
abort();
}
psl2z_inv(f, f);
if (!psl2z_equal(f, g) || !psl2z_is_correct(f))
{
printf("FAIL (aliasing)\n");
printf("f = "); psl2z_print(f); printf("\n");
printf("g = "); psl2z_print(g); printf("\n");
abort();
}
psl2z_clear(f);
psl2z_clear(g);
psl2z_clear(h);
psl2z_clear(i);
}
flint_randclear(state);
flint_cleanup();
printf("PASS\n");
return EXIT_SUCCESS;
}