pqc/external/flint-2.4.3/fmpz_poly_q/test/t-scalar_div_mpz.c
2014-05-24 23:16:06 +02:00

105 lines
2.6 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include "fmpz_poly_q.h"
#include "long_extras.h"
#include "ulong_extras.h"
int
main(void)
{
int i, result;
FLINT_TEST_INIT(state);
flint_printf("scalar_div_mpz... ");
fflush(stdout);
/* Check aliasing of a and b */
for (i = 0; i < 100; i++)
{
fmpz_poly_q_t a, b;
fmpz_t x;
mpz_t y;
fmpz_poly_q_init(a);
fmpz_poly_q_init(b);
fmpz_init(x);
mpz_init(y);
fmpz_poly_q_randtest(b, state, n_randint(state, 50), 50, n_randint(state, 50), 50);
fmpz_randtest_not_zero(x, state, 50);
fmpz_get_mpz(y, x);
fmpz_poly_q_scalar_div_mpz(a, b, y);
fmpz_poly_q_scalar_div_mpz(b, b, y);
result = fmpz_poly_q_equal(a, b);
if (!result)
{
flint_printf("FAIL:\n");
fmpz_poly_q_print(a), flint_printf("\n\n");
fmpz_poly_q_print(b), flint_printf("\n\n");
abort();
}
fmpz_poly_q_clear(a);
fmpz_poly_q_clear(b);
fmpz_clear(x);
mpz_clear(y);
}
/* Check that (a + b) / x == a / x + b / x */
for (i = 0; i < 100; i++)
{
fmpz_poly_q_t a, b, c, d;
fmpz_t x;
mpz_t y;
fmpz_poly_q_init(a);
fmpz_poly_q_init(b);
fmpz_poly_q_init(c);
fmpz_poly_q_init(d);
fmpz_init(x);
mpz_init(y);
fmpz_poly_q_randtest(a, state, n_randint(state, 50), 50, n_randint(state, 50), 50);
fmpz_poly_q_randtest(b, state, n_randint(state, 50), 50, n_randint(state, 50), 50);
fmpz_randtest_not_zero(x, state, 50);
fmpz_get_mpz(y, x);
fmpz_poly_q_scalar_div_mpz(c, a, y);
fmpz_poly_q_scalar_div_mpz(d, b, y);
fmpz_poly_q_add(d, c, d);
fmpz_poly_q_add(c, a, b);
fmpz_poly_q_scalar_div_mpz(c, c, y);
result = fmpz_poly_q_equal(c, d) && fmpz_poly_q_is_canonical(c);
if (!result)
{
flint_printf("FAIL:\n");
flint_printf("a = "), fmpz_poly_q_print(a), flint_printf("\n\n");
flint_printf("b = "), fmpz_poly_q_print(b), flint_printf("\n\n");
flint_printf("c = "), fmpz_poly_q_print(c), flint_printf("\n\n");
flint_printf("d = "), fmpz_poly_q_print(d), flint_printf("\n\n");
gmp_printf("y = %Zd\n\n", y);
abort();
}
fmpz_poly_q_clear(a);
fmpz_poly_q_clear(b);
fmpz_poly_q_clear(c);
fmpz_poly_q_clear(d);
fmpz_clear(x);
mpz_clear(y);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return EXIT_SUCCESS;
}