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-rw-r--r--gcc/testsuite/gcc.dg/cpp/trad/comment-3.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp/trad/comment-3.c b/gcc/testsuite/gcc.dg/cpp/trad/comment-3.c
new file mode 100644
index 000000000..e2710ad56
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/trad/comment-3.c
@@ -0,0 +1,6 @@
+/* Test we don't accept C++ comments. */
+
+/* { dg-do preprocess } */
+
+#if 0
+#endif // /* { dg-warning "extra tokens" } */