Properly constrain basic_string(Iter, Iter, Alloc = A())

llvm-svn: 356140

1 files changed, 9 insertions, 0 deletions

diff --git a/libcxx/test/std/strings/basic.string/string.cons/iter_alloc.pass.cpp b/libcxx/test/std/strings/basic.string/string.cons/iter_alloc.pass.cpp
index 042018cb532..8850dd2a007 100644
--- a/libcxx/test/std/strings/basic.string/string.cons/iter_alloc.pass.cpp
+++ b/libcxx/test/std/strings/basic.string/string.cons/iter_alloc.pass.cpp
@@ -116,6 +116,15 @@ int main(int, char**)
     test(input_iterator<const char*>(s), input_iterator<const char*>(s+50), A());
     }
 #endif
+    {
+      static_assert((!std::is_constructible<std::string, std::string,
+                                            std::string>::value),
+                    "");
+      static_assert(
+          (!std::is_constructible<std::string, std::string, std::string,
+                                  std::allocator<char> >::value),
+          "");
+    }
 
   return 0;
 }