Re: [boost] An attempt to generalize the Pimpl idom with properly separated interface and implementation

Vladimir Batov wrote:

Given I've been using this Pimpl idiom quite extensively lately [...]

class Test { public:

Test (int); Test (int, int);

int get() const;

bool operator==(Test const& p) const { return impl_ == p.impl_; } bool operator!=(Test const& p) const { return impl_ != p.impl_; } operator bool() const { return implementation_; }

void swap(pimpl& that) { impl_.swap(that.impl_); }

private:

struct Internal; boost::shared_ptr<Internal> impl_;

Why use a boost::shared_ptr? You want your implementation details to be shared across all 'Test's? What you need is more like a deep-copying smart pointer.