aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae26.C
diff options
context:
space:
mode:
Diffstat (limited to 'gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae26.C')
-rw-r--r--gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae26.C38
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae26.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae26.C
new file mode 100644
index 0000000..f55e1d8
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae26.C
@@ -0,0 +1,38 @@
+// PR c++/49229
+// { dg-do compile { target c++11 } }
+
+extern void* enabler;
+
+template<bool, class = void>
+struct enable_if {};
+
+template<class T>
+struct enable_if<true, T> {
+ typedef T type;
+};
+
+template<class... Bn>
+struct and_;
+
+template<class B1>
+struct and_<B1> : B1 {};
+
+template<class, class>
+struct is_same {
+ static constexpr bool value = false;
+};
+
+template<class T>
+struct is_same<T, T> {
+ static constexpr bool value = true;
+};
+
+template<class... T>
+struct S {
+ template<class... U,
+ typename enable_if<and_<is_same<T, U>...>::value>::type*& = enabler // { dg-error "no type" }
+ >
+ S(U...){}
+};
+
+S<bool> s(0); // { dg-error "no match" }