Data Types
Integers
Native integer types are prohibited in Qubic smart contracts. Instead, use the integer types provided by QPI: sint8, uint8, sint16, uint16, sint32, uint32, sint64, and uint64.
sint8 a = 1;
uint64 b = 10000000000;
Booleans
Booleans is resperent by bit data type
bit isRight = true;
bit isWrong = false;
bit notSure = true & false;
Id
To respersent user public key we can use the id data type
id user1 = id(1,2,3,4);
id user2 = id(2,3,4,5);
Array
Array of L elements of type T (L must be 2^N)
Read more about Array at QPI::Array
Array<uint64, 4> arr;
arr.set(0, 1);
cout << arr.get(0) << endl; // print 1
BitArray
Array of L bits encoded in array of uint64 (overall size is at least 8 bytes, L must be 2^N)
Read more about BitArray at QPI::BitArray
BitArray<uint64, 4> arr;
arr.set(1, 0);
cout << arr.get(1) << endl; // print 0
HashMap
Hash map of (key, value) pairs of type (KeyT, ValueT) and total element capacity L.
Read more about HashMap at QPI::HashMap
// template <typename KeyT, typename ValueT, uint64 Length>
// Length must be 2^n
HashMap<uint64, uint64, 4> map;
map.set(0, 1);
uint64 value;
map.get(0, value);
cout << value << endl; // print 1
HashSet
Hash set of keys of type KeyT and total element capacity L.
Read more about HashSet at QPI::HashSet
// template <typename KeyT, uint64 Length>
// Length must be 2^n
HashSet<uint64, 4> set;
set.add(0);
cout << set.contains(0); // print true
Collection
Collection of priority queues of elements with type T and total element capacity L.
Read more about Collection at QPI::Collection
// template <typename T, uint64 L>
// Length must be 2^n
Collection<uint64, 128> collection = Collection<uint64, 128>();
collection.add(id::zero(), 1, 1);
collection.add(id::zero(), 2, 2);
cout << collection.population() << endl; // print 2
cout << collection.element(collection.headIndex(id::zero())) << endl; // print 2