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 12 // class function<R(ArgTypes...)> 13 14 // template<class F, class A> void assign(F&&, const A&); 15 // This call was removed post-C++14 16 17 #include <functional> 18 #include <cassert> 19 20 #include "test_macros.h" 21 #include "test_allocator.h" 22 23 class A 24 { 25 int data_[10]; 26 public: 27 static int count; 28 29 A() 30 { 31 ++count; 32 for (int i = 0; i < 10; ++i) 33 data_[i] = i; 34 } 35 36 A(const A&) {++count;} 37 38 ~A() {--count;} 39 40 int operator()(int i) const 41 { 42 for (int j = 0; j < 10; ++j) 43 i += data_[j]; 44 return i; 45 } 46 47 int foo(int) const {return 1;} 48 }; 49 50 int A::count = 0; 51 52 int main() 53 { 54 #if TEST_STD_VER <= 14 55 { 56 std::function<int(int)> f; 57 f.assign(A(), test_allocator<A>()); 58 assert(A::count == 1); 59 assert(f.target<A>()); 60 assert(f.target<int(*)(int)>() == 0); 61 } 62 assert(A::count == 0); 63 #endif 64 } 65
