From 26da267b732e28e4d9697278e735b410e50e5e08 Mon Sep 17 00:00:00 2001 From: Richard Qin Date: Thu, 2 Apr 2026 04:10:53 +0800 Subject: Initial commit: Build project architecture, define interfaces, write documentation, with the help of Claude --- include/atp/search/clause_queue.h | 44 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 include/atp/search/clause_queue.h (limited to 'include/atp/search/clause_queue.h') diff --git a/include/atp/search/clause_queue.h b/include/atp/search/clause_queue.h new file mode 100644 index 0000000..828a725 --- /dev/null +++ b/include/atp/search/clause_queue.h @@ -0,0 +1,44 @@ +/* + * 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 . + */ + + +#pragma once + +/// @file clause_queue.h +/// @brief Priority queue for the Given Clause Loop. + +#include "atp/core/clause.h" + +#include + +namespace atp { + +/// Comparison function type for clause ordering. +using ClauseComparator = std::function; + +/// BFS comparator: prioritize shallower derivation depth. +inline bool bfsCompare(const Clause& a, const Clause& b) { + return a.depth > b.depth; // min-heap by depth +} + +/// Weight comparator: prioritize shorter (fewer literals) clauses. +inline bool weightCompare(const Clause& a, const Clause& b) { + return a.literals.size() > b.literals.size(); // min-heap by literal count +} + +} // namespace atp -- cgit v1.2.3