| //===----------------------------------------------------------------------===// |
| // |
| // 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> |
| |
| // class function<R(ArgTypes...)> |
| |
| // template<class F, class A> function(allocator_arg_t, const A&, F); |
| |
| #include <functional> |
| #include <cassert> |
| |
| #include "../test_allocator.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 foo(int) const {return 1;} |
| }; |
| |
| int A::count = 0; |
| |
| int g(int) {return 0;} |
| |
| class Foo { |
| public: |
| void bar(int k) { } |
| }; |
| |
| int main() |
| { |
| { |
| std::function<int(int)> f(std::allocator_arg, test_allocator<A>(), A()); |
| assert(A::count == 1); |
| assert(f.target<A>()); |
| assert(f.target<int(*)(int)>() == 0); |
| } |
| assert(A::count == 0); |
| { |
| std::function<int(int)> f(std::allocator_arg, test_allocator<int(*)(int)>(), g); |
| assert(f.target<int(*)(int)>()); |
| assert(f.target<A>() == 0); |
| } |
| { |
| std::function<int(int)> f(std::allocator_arg, test_allocator<int(*)(int)>(), |
| (int (*)(int))0); |
| assert(!f); |
| assert(f.target<int(*)(int)>() == 0); |
| assert(f.target<A>() == 0); |
| } |
| { |
| std::function<int(const A*, int)> f(std::allocator_arg, |
| test_allocator<int(A::*)(int)const>(), |
| &A::foo); |
| assert(f); |
| assert(f.target<int (A::*)(int) const>() != 0); |
| } |
| { |
| Foo f; |
| std::function<void(int)> fun = std::bind(&Foo::bar, &f, std::placeholders::_1); |
| fun(10); |
| } |
| } |