Re: Destruction of local before return value

Dear all,

Probably already discussed before, but consider this:

struct KLock
{
    KLock(KCriticalSection& r)
     : m_r(r)
    {
       m_r.Lock();
    }

    ~KLock()
    {
       m_r.Unlock();
    }

private: //data
    KCriticalSection& m_r;
};

struct KBla
{};

struct KFoo
{
    KBla Get();

private: //data
    mutable KCriticalSection m_cs;
    KBla m_bla;
};

KBla KFoo::Get() const
{
     KLock lock(m_cs);

     return m_bla;
}

The KLock class locks the critical section on construction and unlocks
on destruction. However if the destructor of a local is called before
copying the return value, the copying is not proctected. Does any one