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-rw-r--r--gcc/testsuite/g++.dg/template/sfinae24.C26
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/template/sfinae24.C b/gcc/testsuite/g++.dg/template/sfinae24.C
new file mode 100644
index 00000000000..7138c96e66f
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/sfinae24.C
@@ -0,0 +1,26 @@
+// PR c++/44969
+
+template<bool, typename T = void> struct enable_if { typedef T type; };
+template<typename T> struct enable_if<false, T> { };
+
+template<typename Tp, typename Arg1, typename Arg2>
+ class mini_is_constructible
+ {
+ typedef char one;
+ typedef struct { char arr[2]; } two;
+
+ template<typename Tp1, typename Arg1_, typename Arg2_>
+ static typename
+ enable_if<(sizeof(Tp1(Arg1_(), Arg2_()), 1) > 0), one>::type
+ test(int);
+
+ template<typename, typename, typename>
+ static two test(...);
+
+ public:
+ static const bool value = sizeof(test<Tp, Arg1, Arg2>(0)) == 1;
+ };
+
+class A { };
+
+int Test[mini_is_constructible<int, A, A>::value ? -1 : 1];