/*
* Check whether q is equal to a product p[k]
* - if so, check whether p[k] = q
* - otherwise, add a at the end of the array
*/
static void check_product(pprod_t *q) {
uint32_t k;
for (k=0; k<num_prods; k++) {
if (pprod_equal(q, p[k])) {
break;
}
}
if (k < num_prods) {
printf("--> equal to p[%"PRIu32"]\n", k);
if (p[k] != q) {
printf("BUG: HASH CONSING FAILED\n");
fflush(stdout);
abort();
}
} else if (num_prods < NUM_PRODS) {
printf("--> stored as p[%"PRIu32"]\n", k);
p[k] = q;
num_prods ++;
}
}
int main() {
pprod_t *p1, *p2;
uint32_t i, j;
int32_t cmp;
p[0] = empty_pp;
p[1] = var_pp(0);
p[2] = var_pp(1);
p[3] = var_pp(0x3fffffff);
init_pp_buffer(&buffer, 0);
p[4] = pp_buffer_getprod(&buffer); // empty
pp_buffer_reset(&buffer);
pp_buffer_mul_var(&buffer, 0);
p[5] = pp_buffer_getprod(&buffer); // x_0
pp_buffer_reset(&buffer);
pp_buffer_mul_var(&buffer, 0);
pp_buffer_mul_var(&buffer, 1);
pp_buffer_mul_var(&buffer, 0);
p[6] = pp_buffer_getprod(&buffer); // x_0^2 x_1
pp_buffer_reset(&buffer);
pp_buffer_mul_varexp(&buffer, 1, 2);
pp_buffer_mul_varexp(&buffer, 4, 3);
p[7] = pp_buffer_getprod(&buffer); // x_1^2 x_4^3
pp_buffer_set_varexp(&buffer, 3, 2);
pp_buffer_mul_varexp(&buffer, 1, 4);
p[8] = pp_buffer_getprod(&buffer); // x_3^2 x_1^4
pp_buffer_set_pprod(&buffer, p[7]);
pp_buffer_mul_pprod(&buffer, p[1]);
pp_buffer_mul_pprod(&buffer, p[8]);
p[9] = pp_buffer_getprod(&buffer);
for (i=0; i<NUM_PRODS; i++) {
printf("p[%"PRIu32"] = ", i);
print_pprod(stdout, p[i]);
printf(" total degree = %"PRIu32"\n", pprod_degree(p[i]));
for (j=0; j<5; j++) {
printf(" degree of x_%"PRIu32" = %"PRIu32"\n", j, pprod_var_degree(p[i], j));
}
printf("----\n");
}
printf("\n");
for (i=0; i<NUM_PRODS; i++) {
p1 = p[i];
for (j=0; j<NUM_PRODS; j++) {
p2 = p[j];
printf("p1: ");
print_pprod0(stdout, p1);
printf("p2: ");
print_pprod0(stdout, p2);
if (pprod_equal(p1, p2)) {
printf("equal products\n");
}
if (pprod_divides(p1, p2)) {
printf("p1 divides p2\n");
}
if (pprod_divisor(&buffer, p1, p2)) {
printf("p2/p1: ");
print_pp_buffer0(stdout, &buffer);
}
if (pprod_divides(p2, p1)) {
printf("p2 divides p1\n");
}
if (pprod_divisor(&buffer, p2, p1)) {
printf("p1/p2: ");
print_pp_buffer0(stdout, &buffer);
}
cmp = pprod_lex_cmp(p1, p2);
if (cmp < 0) {
printf("p1 < p2 in lex order\n");
} else if (cmp > 0) {
printf("p1 > p2 in lex order\n");
} else {
printf("p1 = p2 in lex order\n");
}
if (pprod_precedes(p1, p2)) {
printf("p1 < p2 in deglex ordering\n");
}
if (pprod_precedes(p2, p1)) {
printf("p2 < p1 in deglex ordering\n");
}
printf("----\n");
}
}
for (i=0; i<10; i++) {
free_pprod(p[i]);
}
delete_pp_buffer(&buffer);
return 0;
}
