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;
}
int main(void) {
uint32_t i, j, n;
pprod_t *q;
init_pprod_table(&ptbl, 10);
init_pp_buffer(&buffer, 10);
p[0] = empty_pp;
p[1] = var_pp(0);
p[2] = var_pp(1);
p[3] = var_pp(2);
p[4] = var_pp(3);
num_prods = 5;
for (i=0; i<5; i++) {
for (j=0; j<5; j++) {
q = pprod_mul(&ptbl, p[i], p[j]);
print_pprod0(stdout, p[i]);
printf(" * ");
print_pprod0(stdout, p[j]);
printf(" = ");
print_pprod0(stdout, q);
printf("\n");
check_product(q);
printf("\n");
}
}
n = num_prods;
for (i=0; i<n; i++) {
for (j=0; j<n; j++) {
q = pprod_mul(&ptbl, p[i], p[j]);
print_pprod0(stdout, p[i]);
printf(" * ");
print_pprod0(stdout, p[j]);
printf(" = ");
print_pprod0(stdout, q);
printf("\n");
check_product(q);
printf("\n");
}
}
for (i=0; i<num_prods; i++) {
pp_buffer_set_pprod(&buffer, p[i]);
printf("p[%"PRIu32"] = %p = ", i, p[i]);
print_pprod0(stdout, p[i]);
printf("\n");
printf("buffer: ");
print_pp_buffer0(stdout, &buffer);
printf("\n");
q = pprod_from_buffer(&ptbl, &buffer);
printf("prod from buffer = %p = ", q);
print_pprod0(stdout, q);
if (q != p[i]) {
printf("BUG: HASH CONSING FAILED\n");
fflush(stdout);
abort();
}
printf("\n\n");
}
// delete the non-trivial products
for (i=5; i<num_prods; i++) {
q = p[i];
assert(q != empty_pp && q != end_pp && !pp_is_var(q));
printf("deleting p[%"PRIu32"] = %p = ", i, q);
print_pprod0(stdout, q);
printf("\n");
delete_pprod(&ptbl, q);
}
printf("\n\n");
p[5] = var_pp(4);
num_prods = 6;
// reconstruct more products
q = pprod_mul(&ptbl, p[1], p[2]);
printf("checking q = %p = ", q);
print_pprod0(stdout, q);
printf("\n");
check_product(q);
printf("\n");
q = pprod_mul(&ptbl, p[2], p[3]);
printf("checking q = %p = ", q);
print_pprod0(stdout, q);
printf("\n");
check_product(q);
printf("\n");
q = pprod_mul(&ptbl, p[3], p[2]);
printf("rechecking q = %p = ", q);
print_pprod0(stdout, q);
printf("\n");
check_product(q);
printf("\n");
q = pprod_mul(&ptbl, p[3], p[4]);
printf("checking q = %p = ", q);
print_pprod0(stdout, q);
printf("\n");
check_product(q);
printf("\n");
q = pprod_mul(&ptbl, p[4], p[3]);
printf("rechecking q = %p = ", q);
print_pprod0(stdout, q);
printf("\n");
check_product(q);
printf("\n");
q = pprod_mul(&ptbl, p[4], p[5]);
printf("checking q = %p = ", q);
print_pprod0(stdout, q);
printf("\n");
check_product(q);
printf("\n");
q = pprod_mul(&ptbl, p[0], p[5]);
printf("checking q = %p = ", q);
print_pprod0(stdout, q);
printf("\n");
check_product(q);
printf("\n");
printf("*** Table content before GC ***\n");
print_pprod_table(stdout, &ptbl);
pprod_table_set_gc_mark(&ptbl, p[num_prods - 1]);
pprod_table_gc(&ptbl);
printf("\n*** Table content after GC ***\n");
print_pprod_table(stdout, &ptbl);
printf("\n");
delete_pp_buffer(&buffer);
delete_pprod_table(&ptbl);
return 0;
}