/*
 * Copyright 2015 (c) Anna Schumaker.
 */

#include <core/containers/set.h>

void set_copy(const struct set *lhs, struct set *rhs)
{
	struct set_iter it_lhs;

	set_for_each(lhs, &it_lhs)
		set_insert(rhs, it_lhs.it_val);
}

void set_inline_intersect(const struct set *lhs, struct set *rhs)
{
	struct set_iter it_rhs;

	set_for_each(rhs, &it_rhs) {
		if (!set_has(lhs, it_rhs.it_val))
			g_hash_table_iter_remove(&it_rhs.it_iter);
	}
}

void set_read(struct file *file, struct set *set)
{
	unsigned int num, val, i;

	file_readf(file, "%u ", &num);
	for (i = 0; i < num; i++) {
		file_readf(file, "%u ", &val);
		set_insert(set, val);
	}
}

void set_write(struct file *file, struct set *set)
{
	struct set_iter it;

	file_writef(file, "%u ", set_size(set));
	set_for_each(set, &it)
		file_writef(file, "%u ", it.it_val);
}