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-rw-r--r--gcc/testsuite/g++.dg/template/ref4.C12
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diff --git a/gcc/testsuite/g++.dg/template/ref4.C b/gcc/testsuite/g++.dg/template/ref4.C
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+++ b/gcc/testsuite/g++.dg/template/ref4.C
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+// PR c++/41972
+
+struct X {
+ static const double x;
+};
+template <const double& _test_>
+ class Foo { };
+template <typename _ignore_>
+struct Y {
+ typedef Foo<X::x> type;
+};
+