1 line
2.5 KiB
C++
1 line
2.5 KiB
C++
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//===----------------------------------------------------------------------===//
//
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <functional>
// class function<R(ArgTypes...)>
// function(const function& f);
#include <functional>
#include <new>
#include <cstdlib>
#include <cassert>
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 g(int) {return 0;}
int main()
{
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 = f;
assert(A::count == 2);
assert(new_called == 2);
assert(f2.target<A>());
assert(f2.target<int(*)(int)>() == 0);
}
assert(A::count == 0);
assert(new_called == 0);
{
std::function<int(int)> f = g;
assert(new_called == 0);
assert(f.target<int(*)(int)>());
assert(f.target<A>() == 0);
std::function<int(int)> f2 = f;
assert(new_called == 0);
assert(f2.target<int(*)(int)>());
assert(f2.target<A>() == 0);
}
assert(new_called == 0);
{
std::function<int(int)> f;
assert(new_called == 0);
assert(f.target<int(*)(int)>() == 0);
assert(f.target<A>() == 0);
std::function<int(int)> f2 = f;
assert(new_called == 0);
assert(f2.target<int(*)(int)>() == 0);
assert(f2.target<A>() == 0);
}
#ifdef _LIBCPP_MOVE
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::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
}
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