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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <functional>
     11 // REQUIRES: c++98 || c++03 || c++11 || c++14
     12 
     13 // class function<R(ArgTypes...)>
     14 
     15 // template<class A> function(allocator_arg_t, const A&);
     16 //
     17 // This signature was removed in C++17
     18 
     19 #include <functional>
     20 #include <cassert>
     21 
     22 #include "min_allocator.h"
     23 
     24 int main()
     25 {
     26     {
     27     std::function<int(int)> f(std::allocator_arg, bare_allocator<int>());
     28     assert(!f);
     29     }
     30 }
     31