1 | //===----------------------------------------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | // UNSUPPORTED: c++03 |
10 | |
11 | // <functional> |
12 | |
13 | // class function<R(ArgTypes...)> |
14 | |
15 | // template<class F, class A> void assign(F&&, const A&); |
16 | // This call was removed post-C++14 |
17 | |
18 | #include <functional> |
19 | #include <cassert> |
20 | |
21 | #include "test_macros.h" |
22 | #include "test_allocator.h" |
23 | |
24 | class A |
25 | { |
26 | int data_[10]; |
27 | public: |
28 | static int count; |
29 | |
30 | A() |
31 | { |
32 | ++count; |
33 | for (int i = 0; i < 10; ++i) |
34 | data_[i] = i; |
35 | } |
36 | |
37 | A(const A&) {++count;} |
38 | |
39 | ~A() {--count;} |
40 | |
41 | int operator()(int i) const |
42 | { |
43 | for (int j = 0; j < 10; ++j) |
44 | i += data_[j]; |
45 | return i; |
46 | } |
47 | |
48 | int foo(int) const {return 1;} |
49 | }; |
50 | |
51 | int A::count = 0; |
52 | |
53 | int main(int, char**) |
54 | { |
55 | #if TEST_STD_VER <= 14 |
56 | { |
57 | std::function<int(int)> f; |
58 | f.assign(A(), test_allocator<A>()); |
59 | assert(A::count == 1); |
60 | assert(f.target<A>()); |
61 | assert(f.target<int(*)(int)>() == 0); |
62 | } |
63 | assert(A::count == 0); |
64 | #endif |
65 | |
66 | return 0; |
67 | } |
68 | |