Question

我需要复制一个 st子:把点子带到一个班子。该职能是:

Clone::Clone( const Clone &source )
{
    m_pDerivate.clear();

    std::vector<Derivate *>::const_iterator it;
    it = source.m_pDerivate.begin();
    for (it = source.m_pDerivate.begin(); it != source.m_pDerivate.end(); ++it) {
        m_pDerivate.push_back(new Derivate(it));
    }
}

而依赖建筑者是:

Derivate::Derivate( const Derivate &source )
{
    _y = source._y; 
    _m = _strdup(source._m);
}

但在我汇编时,我有以下错误......

 cannot convert parameter 1 from  std::_Vector_const_iterator<_Myvec>  to  const Derivate &

......:

m_pDerivate.push_back(new Derivate(it));

如果我把这一条改为......

m_pDerivate.push_back(new Derivate((const Derivate &)(*it)));

......汇编罚款,但Derivate Constructionor没有正确接收数据。

你们能否帮助我?

提前感谢。

Answer 1

您需要参考主人和点人:

*it is of type Derivate*
**it is of type Derivate

变化:

m_pDerivate.push_back(new Derivate(it));

:

m_pDerivate.push_back(new Derivate(**it));

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