Re: [cpp] 嵌套模板的使用问题

[qiaojie]

他这是学Lisp啊


在06-12-6，Chen Shuo <giantchen at gmail.com> 写道：
>
> typedef vector<pair<pair<pair<T1, T2>, T3>, T4> >::iterator itePair;
> 改为：
> typedef typename vector<pair<pair<pair<T1, T2>, T3>, T4> >::iterator
> itePair;
>
> 另外，你为什么不用一个struct，而要用一堆的pair？
> On 12/6/06, 苏亚 <su1981ya at 163.com> wrote:
> > 模板中使用嵌套：
> > template<typename T1, typename T2, typename T3, typename T4>
> > class InferenceData
> > {
> > typedef vector<pair<pair<pair<T1, T2>, T3>, T4> > VecPair;
> > typedef vector<pair<pair<pair<T1, T2>, T3>, T4> >::iterator itePair;
> > }
> >
> > 编译出错：
> > type `std::vector<std::pair<std::pair<std::pair<_T1, _T2>, T3>, T4>,
> > std::allocator<std::pair<std::pair<std::pair<_T1, _T2>, T3>, T4> > >' is
> > not derived from type `InferenceData<T1, T2, T3, T4>'
> >
> > 不知什么问题？
> >
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