object initialzation before initialization list

Question

given:

class A {
    std::list<int> m_list;
    std::list<int>::iterator m_iterator;
public:
    explicit A() : m_iterator(m_list.begin()) { }
};

Am I guaranteed m_list will be constructed before evaluating ctor initialization list, so that a begin() will correctly dereference its beginning/end? Or should I better use an m_iterator assignment inside ctor body?

Note that here `m_iterator` will always be equal to `m_list.end()`, as it is empty. — Quentin, Aug 31 '15 at 12:30

score 5 · Accepted Answer · answered Aug 31 '15 at 12:26

5

Members are constructed in declaration order.

So yes m_list will be constructed before m_list.begin() will be called.

answered Aug 31 '15 at 12:26

Hcorg

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object initialzation before initialization list

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