libcxx

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alloc_rfunction.fail.cpp (1189B)


      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 // XFAIL: 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&, function&&);
     16 //
     17 // This signature was removed in C++17
     18 
     19 #include <functional>
     20 #include <memory>
     21 #include <cassert>
     22 
     23 #include "test_macros.h"
     24 
     25 class A
     26 {
     27     int data_[10];
     28 public:
     29     static int count;
     30 
     31     A()
     32     {
     33         ++count;
     34         for (int i = 0; i < 10; ++i)
     35             data_[i] = i;
     36     }
     37 
     38     A(const A&) {++count;}
     39 
     40     ~A() {--count;}
     41 
     42     int operator()(int i) const
     43     {
     44         for (int j = 0; j < 10; ++j)
     45             i += data_[j];
     46         return i;
     47     }
     48 };
     49 
     50 int A::count = 0;
     51 
     52 int g(int) { return 0; }
     53 
     54 int main()
     55 {
     56     {
     57         std::function<int(int)> f = A();
     58         std::function<int(int)> f2(std::allocator_arg, std::allocator<A>(), std::move(f));
     59     }
     60 }