vector(const _Myt& _Right)
: _Mybase(_Right._Alval)
{ // construct by copying _Right
if (_Buy(_Right.size()))
_TRY_BEGIN
this->_Mylast = _Ucopy(_Right.begin(), _Right.end(),
this->_Myfirst);
_CATCH_ALL
_Tidy();
_RERAISE;
_CATCH_END
}
_Myt& operator=(const _Myt& _Right)
{ // assign _Right
if (this != &_Right)
{ // worth doing
this->_Orphan_all();
if (_Right.size() == 0)
clear(); // new sequence empty, erase existing sequence
else if (_Right.size() <= size())
{ // enough elements, copy new and destroy old
pointer _Ptr = _STD _Copy_impl(_Right._Myfirst, _Right._Mylast,
this->_Myfirst); // copy new
_Destroy(_Ptr, this->_Mylast); // destroy old
this->_Mylast = this->_Myfirst + _Right.size();
}
else if (_Right.size() <= capacity())
{ // enough room, copy and construct new
pointer _Ptr = _Right._Myfirst + size();
_STD _Copy_impl(_Right._Myfirst, _Ptr, this->_Myfirst);
this->_Mylast = _Ucopy(_Ptr, _Right._Mylast, this->_Mylast);
}
else
{ // not enough room, allocate new array and construct new
if (this->_Myfirst != 0)
{ // discard old array
_Destroy(this->_Myfirst, this->_Mylast);
this->_Alval.deallocate(this->_Myfirst,
this->_Myend - this->_Myfirst);
}
if (_Buy(_Right.size()))
this->_Mylast = _Ucopy(_Right._Myfirst, _Right._Mylast,
this->_Myfirst);
}
}
return (*this);
}