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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/cpp/macro2.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/cpp/macro2.c b/gcc-4.9/gcc/testsuite/gcc.dg/cpp/macro2.c
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index 000000000..2265a2b4c
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/cpp/macro2.c
@@ -0,0 +1,14 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc. */
+
+/* { dg-do preprocess } */
+
+/* Tests the argument context get set at the lower level if we drop
+ contexts whilst parsing arguments. This would enter an infinite
+ loop in is_macro_disabled previously. */
+
+#define A Something
+#define B C
+#define C K(
+#define K(S) S
+#define T B A )
+T /* Expands to <Something>. */