* g++.dg/warn/string1.C: Prune extra warning with -std=c++17.

From-SVN: r261164

diff --git a/gcc/testsuite/g++.dg/warn/string1.C b/gcc/testsuite/g++.dg/warn/string1.C
index a0b0d47de1b1b6c6d50af8417220ef5802f32416..9eb5fb696be542181c613e30b2be2fc7fd3243fe 100644 (file)
--- 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 }