Implement http://wg21.link/p0302r1: Removing Allocator Support in std::function. These functions never worked, and as far as I know, no one ever called them.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@284164 91177308-0d34-0410-b5e6-96231b3b80d8

include/functional

@@ -393,15 +393,15 @@ public:
     template<class F>
       function(F);
     template<Allocator Alloc>
-      function(allocator_arg_t, const Alloc&) noexcept;
+      function(allocator_arg_t, const Alloc&) noexcept;            // removed in C++17
     template<Allocator Alloc>
-      function(allocator_arg_t, const Alloc&, nullptr_t) noexcept;
+      function(allocator_arg_t, const Alloc&, nullptr_t) noexcept; // removed in C++17
     template<Allocator Alloc>
-      function(allocator_arg_t, const Alloc&, const function&);
+      function(allocator_arg_t, const Alloc&, const function&);    // removed in C++17
     template<Allocator Alloc>
-      function(allocator_arg_t, const Alloc&, function&&);
+      function(allocator_arg_t, const Alloc&, function&&);         // removed in C++17
     template<class F, Allocator Alloc>
-      function(allocator_arg_t, const Alloc&, F);
+      function(allocator_arg_t, const Alloc&, F);                  // removed in C++17
 
     function& operator=(const function&);
     function& operator=(function&&) noexcept;
@@ -1617,6 +1617,7 @@ public:
     >::type>
     function(_Fp);
 
+#if _LIBCPP_STD_VER <= 14
     template<class _Alloc>
       _LIBCPP_INLINE_VISIBILITY
       function(allocator_arg_t, const _Alloc&) _NOEXCEPT : __f_(0) {}
@@ -1629,6 +1630,7 @@ public:
       function(allocator_arg_t, const _Alloc&, function&&);
     template<class _Fp, class _Alloc, class = typename enable_if<__callable<_Fp>::value>::type>
       function(allocator_arg_t, const _Alloc& __a, _Fp __f);
+#endif
 
     function& operator=(const function&);
     function& operator=(function&&) _NOEXCEPT;
@@ -1689,6 +1691,7 @@ function<_Rp(_ArgTypes...)>::function(const function& __f)
         __f_ = __f.__f_->__clone();
 }
 
+#if _LIBCPP_STD_VER <= 14
 template<class _Rp, class ..._ArgTypes>
 template <class _Alloc>
 function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc&,
@@ -1704,6 +1707,7 @@ function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc&,
     else
         __f_ = __f.__f_->__clone();
 }
+#endif
 
 template<class _Rp, class ..._ArgTypes>
 function<_Rp(_ArgTypes...)>::function(function&& __f) _NOEXCEPT
@@ -1722,6 +1726,7 @@ function<_Rp(_ArgTypes...)>::function(function&& __f) _NOEXCEPT
     }
 }
 
+#if _LIBCPP_STD_VER <= 14
 template<class _Rp, class ..._ArgTypes>
 template <class _Alloc>
 function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc&,
@@ -1740,6 +1745,7 @@ function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc&,
         __f.__f_ = 0;
     }
 }
+#endif
 
 template<class _Rp, class ..._ArgTypes>
 template <class _Fp, class>
@@ -1765,6 +1771,7 @@ function<_Rp(_ArgTypes...)>::function(_Fp __f)
     }
 }
 
+#if _LIBCPP_STD_VER <= 14
 template<class _Rp, class ..._ArgTypes>
 template <class _Fp, class _Alloc, class>
 function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f)
@@ -1790,6 +1797,7 @@ function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc& __a0, _Fp _
         }
     }
 }
+#endif
 
 template<class _Rp, class ..._ArgTypes>
 function<_Rp(_ArgTypes...)>&

test/std/utilities/function.objects/func.wrap/func.wrap.func/derive_from.fail.cpp

@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03
+// XFAIL: c++11, c++14
+
+// <functional>
+
+#include <functional>
+#include <type_traits>
+
+#include "test_macros.h"
+
+struct S : public std::function<void()> { using function::function; };
+
+int main() {
+   S f1( [](){} );
+   S f2(std::allocator_arg, std::allocator<int>{}, f1);
+}

test/std/utilities/function.objects/func.wrap/func.wrap.func/derive_from.pass.cpp

@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03
+// REQUIRES-ANY: c++11, c++14
 
 // <functional>
 
@@ -16,6 +17,8 @@
 #include <functional>
 #include <type_traits>
 
+#include "test_macros.h"
+
 using Fn = std::function<void()>;
 struct S : public std::function<void()> { using function::function; };
 

test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/alloc.fail.cpp

@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+// XFAIL: c++98, c++03, c++11, c++14
+
+// class function<R(ArgTypes...)>
+
+// template<class A> function(allocator_arg_t, const A&);
+
+#include <functional>
+#include <cassert>
+
+#include "min_allocator.h"
+
+int main()
+{
+    std::function<int(int)> f(std::allocator_arg, std::allocator<int>());
+}

test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/alloc.pass.cpp

@@ -8,10 +8,13 @@
 //===----------------------------------------------------------------------===//
 
 // <functional>
+// REQUIRES-ANY: c++98, c++03, c++11, c++14
 
 // class function<R(ArgTypes...)>
 
 // template<class A> function(allocator_arg_t, const A&);
+//
+// This signature was removed in C++17
 
 #include <functional>
 #include <cassert>

test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/alloc_F.fail.cpp

@@ -0,0 +1,29 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+// XFAIL: c++98, c++03, c++11, c++14
+
+// class function<R(ArgTypes...)>
+
+// template<class F, class A> function(allocator_arg_t, const A&, F);
+//
+// This signature was removed in C++17
+
+#include <functional>
+#include <cassert>
+
+#include "test_macros.h"
+
+void foo(int) {}
+
+int main()
+{
+	std::function<void(int)> f(std::allocator_arg, std::allocator<int>(), foo);
+}

test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/alloc_F.pass.cpp

@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 // <functional>
+// REQUIRES-ANY: c++98, c++03, c++11, c++14
 
 // class function<R(ArgTypes...)>
 

test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/alloc_function.fail.cpp

@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+// XFAIL: c++98, c++03, c++11, c++14
+
+// class function<R(ArgTypes...)>
+
+// template<class A> function(allocator_arg_t, const A&, const function&);
+//
+// This signature was removed in C++17
+
+
+#include <functional>
+#include <cassert>
+
+#include "test_macros.h"
+
+int main()
+{
+	typedef std::function<void(int)> F;
+	F f1;
+	F f2(std::allocator_arg, std::allocator<int>(), f1);
+}

test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/alloc_function.pass.cpp

@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 // <functional>
+// REQUIRES-ANY: c++98, c++03, c++11, c++14
 
 // class function<R(ArgTypes...)>
 

test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/alloc_nullptr.fail.cpp

@@ -0,0 +1,27 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+// XFAIL: c++98, c++03, c++11, c++14
+
+// class function<R(ArgTypes...)>
+
+// template<class A> function(allocator_arg_t, const A&, nullptr_t);
+//
+// This signature was removed in C++17
+
+#include <functional>
+#include <cassert>
+
+#include "min_allocator.h"
+
+int main()
+{
+    std::function<int(int)> f(std::allocator_arg, std::allocator<int>(), nullptr);
+}

test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/alloc_nullptr.pass.cpp

@@ -8,10 +8,13 @@
 //===----------------------------------------------------------------------===//
 
 // <functional>
+// REQUIRES-ANY: c++98, c++03, c++11, c++14
 
 // class function<R(ArgTypes...)>
 
 // template<class A> function(allocator_arg_t, const A&, nullptr_t);
+//
+// This signature was removed in C++17
 
 #include <functional>
 #include <cassert>

test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/alloc_rfunction.fail.cpp

@@ -0,0 +1,60 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+// XFAIL: c++98, c++03, c++11, c++14
+
+// class function<R(ArgTypes...)>
+
+// template<class A> function(allocator_arg_t, const A&, function&&);
+//
+// This signature was removed in C++17
+
+#include <functional>
+#include <memory>
+#include <cassert>
+
+#include "test_macros.h"
+
+class A
+{
+    int data_[10];
+public:
+    static int count;
+
+    A()
+    {
+        ++count;
+        for (int i = 0; i < 10; ++i)
+            data_[i] = i;
+    }
+
+    A(const A&) {++count;}
+
+    ~A() {--count;}
+
+    int operator()(int i) const
+    {
+        for (int j = 0; j < 10; ++j)
+            i += data_[j];
+        return i;
+    }
+};
+
+int A::count = 0;
+
+int g(int) { return 0; }
+
+int main()
+{
+    {
+        std::function<int(int)> f = A();
+        std::function<int(int)> f2(std::allocator_arg, std::allocator<A>(), std::move(f));
+    }
+}

test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/alloc_rfunction.pass.cpp

@@ -8,12 +8,15 @@
 //===----------------------------------------------------------------------===//
 
 // UNSUPPORTED: c++98, c++03
+// REQUIRES-ANY: c++11, c++14
 
 // <functional>
 
 // class function<R(ArgTypes...)>
 
 // template<class A> function(allocator_arg_t, const A&, function&&);
+//
+// This signature was removed in C++17
 
 #include <functional>
 #include <memory>

www/cxx1z_status.html

@@ -111,7 +111,7 @@
 	<tr><td><a href="http://wg21.link/p0254r2">p0254r2</a></td><td>LWG</td><td>Integrating std::string_view and std::string</td><td>Oulu</td><td>Complete</td><td>4.0</td></tr>
 	<tr><td><a href="http://wg21.link/p0258r2">p0258r2</a></td><td>LWG</td><td>has_unique_object_representations</td><td>Oulu</td><td></td><td></td></tr>
 	<tr><td><a href="http://wg21.link/p0295r0">p0295r0</a></td><td>LWG</td><td>Adopt Selected Library Fundamentals V2 Components for C++17</td><td>Oulu</td><td>Complete</td><td>4.0</td></tr>
-	<tr><td><a href="http://wg21.link/p0302r1">p0302r1</a></td><td>LWG</td><td>Removing Allocator Support in std::function</td><td>Oulu</td><td></td><td></td></tr>
+	<tr><td><a href="http://wg21.link/p0302r1">p0302r1</a></td><td>LWG</td><td>Removing Allocator Support in std::function</td><td>Oulu</td><td>Complete</td><td>4.0</td></tr>
 	<tr><td><a href="http://wg21.link/p0307r2">p0307r2</a></td><td>LWG</td><td>Making Optional Greater Equal Again</td><td>Oulu</td><td></td><td></td></tr>
 	<tr><td><a href="http://wg21.link/p0336r1">p0336r1</a></td><td>LWG</td><td>Better Names for Parallel Execution Policies in C++17</td><td>Oulu</td><td></td><td></td></tr>
 	<tr><td><a href="http://wg21.link/p0337r0">p0337r0</a></td><td>LWG</td><td>Delete operator= for polymorphic_allocator</td><td>Oulu</td><td>Complete</td><td>3.9</td></tr>
@@ -317,7 +317,7 @@
 <!-- 	<tr><td></td><td></td><td></td><td></td></tr> -->
   </table>
 
-  <p>Last Updated: 12-Jul-2016</p>
+  <p>Last Updated: 13-Oct-2016</p>
 </div>
 </body>
 </html>