From c165bd15c5017137db38e149c8c8b68f1233fa96 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Ho=C5=99e=C5=88ovsk=C3=BD?=
 <martin.horenovsky@gmail.com>
Date: Mon, 4 Nov 2019 00:05:32 +0100
Subject: [PATCH] Forbid copying ReusableStringStream

Copying a `ReusableStringStream` would lead to "double free" of
the stream, and thus it could be used in multiple places at the
same time, breaking the output.
---
 src/catch2/catch_stream.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/catch2/catch_stream.h b/src/catch2/catch_stream.h
index 2b41adbd..999849c9 100644
--- a/src/catch2/catch_stream.h
+++ b/src/catch2/catch_stream.h
@@ -9,6 +9,8 @@
 #ifndef TWOBLUECUBES_CATCH_STREAM_H_INCLUDED
 #define TWOBLUECUBES_CATCH_STREAM_H_INCLUDED
 
+#include "catch_common.h"
+
 #include <iosfwd>
 #include <cstddef>
 #include <ostream>
@@ -28,7 +30,7 @@ namespace Catch {
 
     auto makeStream( StringRef const &filename ) -> IStream const*;
 
-    class ReusableStringStream {
+    class ReusableStringStream : NonCopyable {
         std::size_t m_index;
         std::ostream* m_oss;
     public: