From 312b7f1b4ba9d79a66459221ffa53db9da1cdee9 Mon Sep 17 00:00:00 2001
From: sjdilkes <silas.dilkes@cambridgequantum.com>
Date: Tue, 5 Sep 2023 11:34:01 +0100
Subject: [PATCH] add MetaOp::is_equal

---
 tket/include/tket/Ops/MetaOp.hpp | 4 ++++
 tket/src/Ops/MetaOp.cpp          | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/tket/include/tket/Ops/MetaOp.hpp b/tket/include/tket/Ops/MetaOp.hpp
index 64b5616889..7b49bb3570 100644
--- a/tket/include/tket/Ops/MetaOp.hpp
+++ b/tket/include/tket/Ops/MetaOp.hpp
@@ -37,6 +37,10 @@ class MetaOp : public Op {
   bool is_clifford() const override;
 
   ~MetaOp() override;
+  /**
+   * Equality check between two MetaOp instances
+   */
+  bool is_equal(const Op &other) const override;
 
  private:
   op_signature_t
diff --git a/tket/src/Ops/MetaOp.cpp b/tket/src/Ops/MetaOp.cpp
index 2ab18d04ca..255568d1e8 100644
--- a/tket/src/Ops/MetaOp.cpp
+++ b/tket/src/Ops/MetaOp.cpp
@@ -45,4 +45,9 @@ bool MetaOp::is_clifford() const { return true; }
 
 MetaOp::~MetaOp() {}
 
+bool MetaOp::is_equal(const Op& op_other) const {
+  const MetaOp& other = dynamic_cast<const MetaOp&>(op_other);
+  return (get_signature() == other.get_signature());
+}
+
 }  // namespace tket