void
arf_fprint(FILE * file, const arf_t x)
{
if (arf_is_normal(x))
{
fmpz_t man, exp;
fmpz_init(man);
fmpz_init(exp);
arf_get_fmpz_2exp(man, exp, x);
flint_fprintf(file, "(");
fmpz_fprint(file, man);
flint_fprintf(file, " * 2^");
fmpz_fprint(file, exp);
flint_fprintf(file, ")");
fmpz_clear(man);
fmpz_clear(exp);
}
else
{
if (arf_is_zero(x)) flint_fprintf(file, "(0)");
else if (arf_is_pos_inf(x)) flint_fprintf(file, "(+inf)");
else if (arf_is_neg_inf(x)) flint_fprintf(file, "(-inf)");
else flint_fprintf(file, "(nan)");
}
}
int main()
{
slong iter, iter2;
flint_rand_t state;
flint_printf("add....");
fflush(stdout);
flint_randinit(state);
for (iter = 0; iter < 10000 * arb_test_multiplier(); iter++)
{
arf_t x, y, z, v;
slong prec, r1, r2;
arf_rnd_t rnd;
fmpz_t t;
arf_init(x);
arf_init(y);
arf_init(z);
arf_init(v);
fmpz_init(t);
for (iter2 = 0; iter2 < 100; iter2++)
{
arf_randtest_special(x, state, 2000, 100);
arf_randtest_special(y, state, 2000, 100);
prec = 2 + n_randint(state, 2000);
switch (n_randint(state, 5))
{
case 0: rnd = ARF_RND_DOWN; break;
case 1: rnd = ARF_RND_UP; break;
case 2: rnd = ARF_RND_FLOOR; break;
case 3: rnd = ARF_RND_CEIL; break;
default: rnd = ARF_RND_NEAR; break;
}
rnd = ARF_RND_DOWN;
if (arf_is_normal(x) && arf_is_normal(y))
{
fmpz_sub(t, ARF_EXPREF(x), ARF_EXPREF(y));
/* if not too far apart, sometimes test exact addition */
if (fmpz_bits(t) < 10)
{
if (n_randint(state, 10) == 0)
prec = ARF_PREC_EXACT;
}
else if (rnd == ARF_RND_NEAR)
{ /* large shift not supported in add_naive */
rnd = ARF_RND_DOWN;
}
}
switch (n_randint(state, 5))
{
case 0:
r1 = arf_add(z, x, y, prec, rnd);
r2 = arf_add_naive(v, x, y, prec, rnd);
if (!arf_equal(z, v) || r1 != r2)
{
flint_printf("FAIL!\n");
flint_printf("prec = %wd, rnd = %d\n\n", prec, rnd);
flint_printf("x = "); arf_print(x); flint_printf("\n\n");
flint_printf("y = "); arf_print(y); flint_printf("\n\n");
flint_printf("z = "); arf_print(z); flint_printf("\n\n");
flint_printf("v = "); arf_print(v); flint_printf("\n\n");
flint_printf("r1 = %wd, r2 = %wd\n", r1, r2);
abort();
}
break;
case 1:
r1 = arf_add(z, x, x, prec, rnd);
r2 = arf_add_naive(v, x, x, prec, rnd);
if (!arf_equal(z, v) || r1 != r2)
{
flint_printf("FAIL (aliasing 1)!\n");
flint_printf("prec = %wd, rnd = %d\n\n", prec, rnd);
flint_printf("x = "); arf_print(x); flint_printf("\n\n");
flint_printf("z = "); arf_print(z); flint_printf("\n\n");
flint_printf("v = "); arf_print(v); flint_printf("\n\n");
flint_printf("r1 = %wd, r2 = %wd\n", r1, r2);
abort();
}
break;
case 2:
r2 = arf_add_naive(v, x, x, prec, rnd);
r1 = arf_add(x, x, x, prec, rnd);
if (!arf_equal(v, x) || r1 != r2)
{
flint_printf("FAIL (aliasing 2)!\n");
flint_printf("prec = %wd, rnd = %d\n\n", prec, rnd);
flint_printf("x = "); arf_print(x); flint_printf("\n\n");
flint_printf("z = "); arf_print(z); flint_printf("\n\n");
flint_printf("v = "); arf_print(v); flint_printf("\n\n");
flint_printf("r1 = %wd, r2 = %wd\n", r1, r2);
abort();
}
break;
case 3:
r2 = arf_add_naive(v, x, y, prec, rnd);
r1 = arf_add(x, x, y, prec, rnd);
if (!arf_equal(x, v) || r1 != r2)
{
flint_printf("FAIL (aliasing 3)!\n");
flint_printf("prec = %wd, rnd = %d\n\n", prec, rnd);
flint_printf("x = "); arf_print(x); flint_printf("\n\n");
flint_printf("y = "); arf_print(y); flint_printf("\n\n");
flint_printf("v = "); arf_print(v); flint_printf("\n\n");
flint_printf("r1 = %wd, r2 = %wd\n", r1, r2);
abort();
}
break;
default:
r2 = arf_add_naive(v, x, y, prec, rnd);
r1 = arf_add(x, y, x, prec, rnd);
if (!arf_equal(x, v) || r1 != r2)
{
flint_printf("FAIL (aliasing 4)!\n");
flint_printf("prec = %wd, rnd = %d\n\n", prec, rnd);
flint_printf("x = "); arf_print(x); flint_printf("\n\n");
flint_printf("y = "); arf_print(y); flint_printf("\n\n");
flint_printf("v = "); arf_print(v); flint_printf("\n\n");
flint_printf("r1 = %wd, r2 = %wd\n", r1, r2);
abort();
}
break;
}
}
arf_clear(x);
arf_clear(y);
arf_clear(z);
arf_clear(v);
fmpz_clear(t);
}
flint_randclear(state);
flint_cleanup();
flint_printf("PASS\n");
return EXIT_SUCCESS;
}
