--- In Boost-Users@y..., Douglas Gregor
On Monday 15 April 2002 06:56 am, you wrote:
Has anyone managed to use boost::function<> with Sun WorkShop 6 update 2? For me, it causes the compiler to core dump.
Simon Bailey
I don't believe anyone has gotten this to work, unfortunately. I have access to this compiler now, so I might be able to port boost::function to it.
Doug
Glad you're on it Doug - it's a very useful class on its own and
essential for boost::threads. If any one's interested, I've whipped
up a rough version of boost::function (which only handles
functors). It's enough to get boost::threads working.
Simon
class function_holder_base // detail
{
public:
virtual ~function_holder_base() {}
virtual void operator()() = 0;
virtual function_holder_base* copy() const = 0;
};
#endif // !defined(WU_FUNCTION_HOLDER_BASE_H_)
template<typename F>
class function_holder : public function_holder_base // detail
{
public:
function_holder(const F& f) : m_f(f) {}
~function_holder() {}
void operator()() { m_f(); }
function_holder_base* copy() const { return new
function_holder(*this); }
private:
F m_f;
};
class function
{
public:
template<typename F> function(const F& fb) : m_fb(new
function_holder<F>(fb)) {}
function(const function& r) : m_fb( (r.m_fb)->copy() ) {}
function() : m_fb(0) {}
function& operator=(const function& r)
{
std::auto_ptr
copy() ); if(fb.get()) { delete m_fb; m_fb = fb.release(); } return *this; } ~function() { delete m_fb; } void operator()() { m_fb->operator()(); } operator bool() const { return m_fb != 0; } void clear() { delete m_fb; m_fb = 0; }
private: function_holder_base* m_fb; };