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/* This file is public domain. Author: Fredrik Johansson. */
#include <string.h>
#include <stdlib.h>
#include <flint/arb.h>
#include <flint/acb_modular.h>
#include <flint/fmpz_poly.h>
#include <flint/profiler.h>
int main(int argc, char *argv[])
{
fmpz_poly_t res;
slong i, num_threads;
slong D;
if (argc < 2)
{
flint_printf("usage: build/examples/class_poly D [-threads n]\n");
return 1;
}
D = atol(argv[1]);
num_threads = 1;
for (i = 2; i < argc; i++)
{
if (!strcmp(argv[i], "-threads"))
num_threads = atol(argv[i+1]);
}
flint_set_num_threads(num_threads);
fmpz_poly_init(res);
TIMEIT_ONCE_START;
acb_modular_hilbert_class_poly(res, D);
TIMEIT_ONCE_STOP;
print_memory_usage();
if (FLINT_ABS(D) <= 100)
{
fmpz_poly_print(res);
flint_printf("\n");
}
else
{
flint_printf("degree = %wd, bits = %wd\n",
fmpz_poly_degree(res), fmpz_poly_max_bits(res));
}
fmpz_poly_clear(res);
flint_cleanup_master();
return 0;
}
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