From 13ab1caf952c7678862baf5e488d695ac7054501 Mon Sep 17 00:00:00 2001
From: "Maarten L. Hekkelman" <maarten@hekkelman.com>
Date: Mon, 22 Jan 2024 15:33:43 +0100
Subject: [PATCH] macOS...

---
 include/cif++/validate.hpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/cif++/validate.hpp b/include/cif++/validate.hpp
index 54f9314..2cbd5fe 100644
--- a/include/cif++/validate.hpp
+++ b/include/cif++/validate.hpp
@@ -151,6 +151,16 @@ struct type_validator
 
 struct item_alias
 {
+	item_alias(const std::string &alias_name, const std::string &dictionary, const std::string &version)
+		: m_name(alias_name)
+		, m_dict(dictionary)
+		, m_vers(version)
+	{
+	}
+
+	item_alias(const item_alias &) = default;
+	item_alias &operator=(const item_alias &) = default;
+
 	std::string m_name; ///< The alias_name
 	std::string m_dict; ///< The dictionary in which it was known
 	std::string m_vers; ///< The version of the dictionary