From 5a0b3927a33807cca4c77c40eb873f8a3b51b0b0 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Sat, 29 Apr 2023 19:07:11 +0100
Subject: Drop .hpp for header only things

Half of them acquired a .cpp part anyway
---
 lib/glRef.h | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 lib/glRef.h

(limited to 'lib/glRef.h')

diff --git a/lib/glRef.h b/lib/glRef.h
new file mode 100644
index 0000000..3031cf5
--- /dev/null
+++ b/lib/glRef.h
@@ -0,0 +1,62 @@
+#pragma once
+
+#include <special_members.h>
+#include <stdexcept>
+
+template<typename IdType, auto get, auto release, auto... fixed> class glRef {
+public:
+	// cppcheck-suppress redundantPointerOp
+	template<typename... Args> explicit glRef(Args &&... args) : id {(*get)(fixed..., std::forward<Args>(args)...)}
+	{
+		if (!id) {
+			throw std::runtime_error("Get function failed");
+		}
+	}
+
+	glRef(glRef && other) : id {other.id}
+	{
+		other.id = {};
+	}
+
+	~glRef()
+	{
+		if (id) {
+			// cppcheck-suppress redundantPointerOp
+			(*release)(id);
+		}
+	}
+
+	NO_COPY(glRef);
+
+	const auto &
+	operator=(glRef && other)
+	{
+		if (id) {
+			// cppcheck-suppress redundantPointerOp
+			(*release)(id);
+		}
+		id = other.id;
+		other.id = {};
+		return *this;
+	}
+
+	auto
+	operator*() const
+	{
+		return id;
+	}
+
+	auto
+	operator->() const
+	{
+		return id;
+	}
+
+	operator IdType() const
+	{
+		return id;
+	}
+
+private:
+	IdType id;
+};
-- 
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