Variable<T_>::Variable(std::string&& thename, T_ themin, T_ themax, T_ theini) :
name_(std::move(thename)),
min_(themin),
max_(themax),
ini_(theini),
range_(1),
offset_(0)
{
assert_invariant();
}
ref_count_ptr &operator=(const ref_count_ptr &r) {
if (this==&r) return *this;
reset();
ptr=r.ptr;
dtor=r.dtor;
k=r.k;
if (*this) ++*k; // call operator bool() test if k != 0
assert_invariant();
return *this;
}
void reset() {
// If I am empty return
if (!*this) return;
if (!--*k) { /* --*k == 0 */
dtor(ptr); // clean up memory
delete k;
k=0;
ptr=0;
}
assert_invariant();
}
Variable<T_>&
Variable<T_>::operator=(Variable<T_>&& that)
{
if (!name_.empty()) {
std::string err("trying to copy-assign the non-fresh variable \"");
throw_FigException(err.append(name_).append("\""));
}
name_ = std::move(that.name_);
min_ = std::move(that.min_);
max_ = std::move(that.max_);
ini_ = std::move(that.ini_);
range_ = std::move(that.range_);
offset_ = std::move(that.offset_);
assert_invariant();
return *this;
}
// return 0 if empty
void *get() {
assert_invariant();
return (*this)?ptr:0;
}
ref_count_ptr(void *ptr_, void (*dtor_)(void *)): ptr(ptr_), dtor(dtor_), k(0) {
if (ptr_) k=new size_t(1);
assert_invariant();
}
ref_count_ptr(const ref_count_ptr &r): ptr(r.ptr), dtor(r.dtor), k(r.k) {
if (*this) ++*k;
assert_invariant();
}
~ref_count_ptr() {
reset();
assert_invariant();
}
