Second iteration of DKM

This commit is contained in:
2026-01-21 09:33:36 +02:00
parent 2d0118308f
commit 492b1cf503

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@@ -9,23 +9,52 @@
#ifndef GUARD_TOURMALINE_DUALKEYMAP_H
#define GUARD_TOURMALINE_DUALKEYMAP_H
#include <cstddef>
#include <cstdint>
#include <vector>
namespace Tourmaline::Containers {
template <typename A, typename B, typename Value> class DualkeyMap {
template <typename AKey, typename BKey, typename Value,
uint64_t baseReservation = 1024,
float reservationGrowthExponent = 1.5>
class DualkeyMap {
constexpr static uint64_t EmptyKey = -1;
DualkeyMap() {
ValueList.reserve(baseReservation);
HashList.reserve(baseReservation);
}
~DualkeyMap() {
// I'm sure there is a better way to do this
for (auto value : ValueList) {
delete value;
}
for (auto hash : HashList) {
delete hash.Apointer;
delete hash.Bpointer;
}
}
// No copying, No moving. Moving may be valid in the future.
// However as of now it is not a wise way to use this map.
DualkeyMap(const DualkeyMap &) = delete;
DualkeyMap(DualkeyMap &&) = delete;
DualkeyMap &operator=(const DualkeyMap &) = delete;
DualkeyMap &operator=(DualkeyMap &&) = delete;
private:
struct DualkeyHash {
DualkeyHash(std::size_t AHash, A *APointer, std::size_t BHash, B *BPointer)
DualkeyHash(std::size_t AHash, AKey *APointer, std::size_t BHash,
BKey *BPointer)
: AKeyHash(AHash), APointer(APointer), BKeyHash(BHash),
BPointer(BPointer) {}
std::size_t AKeyHash = 0;
std::size_t BKeyHash = 0;
A *APointer;
B *BPointer;
AKey *APointer;
BKey *BPointer;
};
std::vector<Value *> ValueList;
std::vector<DualkeyHash> HashList{};
std::vector<DualkeyHash> HashList;
};
} // namespace Tourmaline::Containers
#endif