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-rw-r--r--test/Preprocessor/macro_paste_hashhash.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/test/Preprocessor/macro_paste_hashhash.c b/test/Preprocessor/macro_paste_hashhash.c
new file mode 100644
index 0000000..42654fd
--- /dev/null
+++ b/test/Preprocessor/macro_paste_hashhash.c
@@ -0,0 +1,7 @@
+// RUN: clang-cc -E %s | grep '^"x ## y";$'
+#define hash_hash # ## #
+#define mkstr(a) # a
+#define in_between(a) mkstr(a)
+#define join(c, d) in_between(c hash_hash d)
+join(x, y);
+
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