From 6088d4c498ff5a1399a9b07101e9830683eae96f Mon Sep 17 00:00:00 2001
From: Jason Merrill <jason@gcc.gnu.org>
Date: Mon, 4 Jun 2018 13:46:17 -0400
Subject: [PATCH] * g++.dg/warn/string1.C: Prune extra warning with -std=c++17.

From-SVN: r261164
---
 gcc/testsuite/g++.dg/warn/string1.C | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gcc/testsuite/g++.dg/warn/string1.C b/gcc/testsuite/g++.dg/warn/string1.C
index a0b0d47de1b..9eb5fb696be 100644
--- a/gcc/testsuite/g++.dg/warn/string1.C
+++ b/gcc/testsuite/g++.dg/warn/string1.C
@@ -18,3 +18,6 @@ int test() {
 
   return 0;
 }
+
+// With -std=c++17 we get another warning deep under operator+=.
+// { dg-prune-output __builtin_memcpy }
-- 
2.30.2