1 files changed, 59 insertions, 0 deletions
diff --git a/proofsearch/src/core/clause_store.cc b/proofsearch/src/core/clause_store.cc
new file mode 100644
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+++ b/proofsearch/src/core/clause_store.cc
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+/*
+ * richard-atp-engine: A saturation-based automated theorem prover for first-order logic.
+ * Copyright (C) 2026 Richard Qin
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "atp/core/clause_store.h"
+
+#include "atp/core/clause.h"
+#include "atp/core/types.h"
+
+#include <cassert>
+#include <cstddef>
+#include <functional>
+#include <utility>
+
+namespace atp {
+
+ClauseId ClauseStore::addClause(Clause clause) {
+    auto new_id = static_cast<ClauseId>(clauses_.size());
+    clause.id_ = new_id;
+    clauses_.push_back(std::move(clause));
+    return new_id;
+}
+
+const Clause& ClauseStore::getClause(ClauseId id) const {
+    assert(id < clauses_.size() && "ClauseId out of bounds!");
+    return clauses_[id];
+}
+
+Clause& ClauseStore::getMutableClause(ClauseId id) {
+    assert(id < clauses_.size() && "ClauseId out of bounds!");
+    return clauses_[id];
+}
+
+size_t ClauseStore::size() const {
+    return clauses_.size();
+}
+
+void ClauseStore::forEach(const std::function<void(const Clause&)>& visitor) const {
+    for (const auto& clause : clauses_) {
+        // TODO: Tombstone mechanism
+        visitor(clause);
+    }
+}
+
+}  // namespace atp