1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gdc.test/fail_compilation/casttuple.d b/gcc/testsuite/gdc.test/fail_compilation/casttuple.d
new file mode 100644
index 0000000..d08de08b5
--- /dev/null
+++ b/gcc/testsuite/gdc.test/fail_compilation/casttuple.d
@@ -0,0 +1,25 @@
+/*
+TEST_OUTPUT:
+---
+fail_compilation/casttuple.d(104): Error: cannot cast `__tup1_field_0` of type `int` to tuple type `(string)`
+fail_compilation/casttuple.d(107): Error: cannot cast `tuple(__tup2_field_0, __tup2_field_1)` of type `(int, int)` to tuple type `(string, string)`
+fail_compilation/casttuple.d(111): Error: cannot cast `tuple(foo, 123)` of type `(int, int)` to tuple type `(string, string)`
+---
+ */
+
+alias tuple(T...) = T;
+
+#line 100
+
+void nomatch()
+{
+    tuple!int tup1;
+    auto x = cast(tuple!string) tup1;
+
+    tuple!(int, int) tup2;
+    auto y = cast(tuple!(string, string)) tup2;
+
+    int foo;
+    alias tup3 = tuple!(foo, 123);
+    auto z = cast(tuple!(string, string)) tup3;
+}