Deduction guides for the container adaptors - queue, stack, and priority_queue

llvm-svn: 332927

1 files changed, 53 insertions, 0 deletions

diff --git a/libcxx/test/std/containers/container.adaptors/stack/stack.cons/deduct.fail.cpp b/libcxx/test/std/containers/container.adaptors/stack/stack.cons/deduct.fail.cpp
new file mode 100644
index 00000000000..e14965adadc
--- /dev/null
+++ b/libcxx/test/std/containers/container.adaptors/stack/stack.cons/deduct.fail.cpp
@@ -0,0 +1,53 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <stack>
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+// UNSUPPORTED: libcpp-no-deduction-guides
+
+
+// template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
+//    vector(InputIterator, InputIterator, Allocator = Allocator())
+//    -> vector<typename iterator_traits<InputIterator>::value_type, Allocator>;
+//
+
+
+#include <stack>
+#include <list>
+#include <iterator>
+#include <cassert>
+#include <cstddef>
+
+
+int main()
+{  
+//  Test the explicit deduction guides
+    {
+//  stack(const Container&, const Alloc&);
+//  The '45' is not an allocator
+    std::stack stk(std::list<int>({1,2,3}), 45);  // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'stack'}}
+    }
+
+    {
+//  stack(const stack&, const Alloc&);
+//  The '45' is not an allocator
+    std::stack<int> source;
+    std::stack stk(source, 45);  // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'stack'}}
+    }
+
+//  Test the implicit deduction guides
+    {
+//  stack (allocator &)
+    std::stack stk((std::allocator<int>()));  // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'stack'}}
+//  Note: The extra parens are necessary, since otherwise clang decides it is a function declaration.
+//  Also, we can't use {} instead of parens, because that constructs a
+//      stack<allocator<int>, allocator<allocator<int>>>
+    }
+
+}