From b7d3b265af36ea309483678aa57e0cd30026aa29 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Sun, 8 Oct 2023 16:21:00 +0100
Subject: Make pq_deleter a generic helper

---
 libpqpp/pq-column.h  | 11 ++---------
 libpqpp/pq-helpers.h | 14 ++++++++++++++
 2 files changed, 16 insertions(+), 9 deletions(-)
 create mode 100644 libpqpp/pq-helpers.h

diff --git a/libpqpp/pq-column.h b/libpqpp/pq-column.h
index d3400bf..6bf2669 100644
--- a/libpqpp/pq-column.h
+++ b/libpqpp/pq-column.h
@@ -1,6 +1,7 @@
 #ifndef PG_COLUMN_H
 #define PG_COLUMN_H
 
+#include "pq-helpers.h"
 #include <column.h>
 #include <cstring>
 #include <libpq-fe.h>
@@ -32,15 +33,7 @@ namespace PQ {
 		const Oid oid;
 
 		// Buffer for PQunescapeBytea
-		struct pq_deleter {
-			void
-			operator()(unsigned char * p)
-			{
-				PQfreemem(p);
-			}
-		};
-
-		using BufPtr = std::unique_ptr<unsigned char, pq_deleter>;
+		using BufPtr = std::unique_ptr<unsigned char, pq_deleter<PQfreemem>>;
 		mutable BufPtr buf;
 	};
 }
diff --git a/libpqpp/pq-helpers.h b/libpqpp/pq-helpers.h
new file mode 100644
index 0000000..76e5057
--- /dev/null
+++ b/libpqpp/pq-helpers.h
@@ -0,0 +1,14 @@
+#ifndef PQ_HELPERS_H
+#define PQ_HELPERS_H
+
+namespace PQ {
+	template<auto func> struct pq_deleter {
+		void
+		operator()(auto p) const
+		{
+			func(p);
+		}
+	};
+}
+
+#endif
-- 
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