Template type deduction with a non-copyable class
- by Evan Teran
Suppose I have an autolocker class which looks something like this:
template <T>
class autolocker {
public:
autolocker(T *l) : lock(l) {
lock->lock();
}
~autolocker() {
lock->unlock();
}
private:
autolocker(const autolocker&);
autolocker& operator=(const autolocker&);
private:
T *lock;
}
Obviously the goal is to be able to use this autolocker with anything that has a lock/unlock method without resorting to virtual functions.
Currently, it's simple enough to use like this:
autolocker<some_lock_t> lock(&my_lock); // my_lock is of type "some_lock_t"
but it is illegal to do:
autolocker lock(&my_lock); // this would be ideal
Is there anyway to get template type deduction to play nice with this (keep in my autolocker is non-copyable). Or is it just easiest to just specify the type?
