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tjp/core/containers/PtrOrValue.hpp

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+// License: Modified MIT (NON-AI)
+// See the LICENSE file in the root directory for license information.
+// Copyright 2025 Timothy Prepscius
+
+#pragma once
+
+#include "PtrOrValue.h"
+
+namespace tjp::core {
+
+template<typename T>
+struct PtrOrValue {
+	Optional<T> v;
+	const T *p = nullptr;
+	
+	const T *get() const {
+		return v ?
+			&*v :
+			p;
+	}
+	
+	PtrOrValue(const T &v_) :
+		v(v_) {}
+
+	PtrOrValue(T &&v_) :
+		v(std::move(v_)) {}
+
+	PtrOrValue(const T *p_) :
+		p(p_)
+	{}
+
+	PtrOrValue(const PtrOrValue &rhs) :
+		v(rhs.v),
+		p(rhs.p)
+	{}
+
+	PtrOrValue(PtrOrValue &&rhs) :
+		v(std::move(rhs.v)),
+		p(std::move(rhs.p))
+	{}
+	
+	auto *operator ->() const
+	{
+		return get();
+	}
+	
+	const T &operator *() const
+	{
+		return *get();
+	}
+	
+	operator const T&() const
+	{
+		return *get();
+	}
+} ;
+
+template<typename T>
+PtrOrValue<T> makePtrOrValue(const T *t)
+{
+	return PtrOrValue<T>(t);
+}
+
+template<typename T>
+PtrOrValue<T> makePtrOrValue(const T &t)
+{
+	return PtrOrValue<T>(t);
+}
+
+} // namespace