82 lines
1.7 KiB
C++
82 lines
1.7 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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 A> function(allocator_arg_t, const A&, function&&);
|
|
|
|
#include <functional>
|
|
#include <cassert>
|
|
|
|
#include "../test_allocator.h"
|
|
|
|
int new_called = 0;
|
|
|
|
void* operator new(std::size_t s) throw(std::bad_alloc)
|
|
{
|
|
++new_called;
|
|
return std::malloc(s);
|
|
}
|
|
|
|
void operator delete(void* p) throw()
|
|
{
|
|
--new_called;
|
|
std::free(p);
|
|
}
|
|
|
|
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 A::count = 0;
|
|
|
|
int main()
|
|
{
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
assert(new_called == 0);
|
|
{
|
|
std::function<int(int)> f = A();
|
|
assert(A::count == 1);
|
|
assert(new_called == 1);
|
|
assert(f.target<A>());
|
|
assert(f.target<int(*)(int)>() == 0);
|
|
std::function<int(int)> f2(std::allocator_arg, test_allocator<A>(), std::move(f));
|
|
assert(A::count == 1);
|
|
assert(new_called == 1);
|
|
assert(f2.target<A>());
|
|
assert(f2.target<int(*)(int)>() == 0);
|
|
assert(f.target<A>() == 0);
|
|
assert(f.target<int(*)(int)>() == 0);
|
|
}
|
|
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
}
|