QList 的==问题

[龙内cool]

 QList<QextPortInfo> newPortInfo;
 QList<QextPortInfo> currPortInfo; 
 if(newPortInfo==currPortInfo){}

在执行上述代码时，出现了


请问各位大神怎么破？

[写不动代码的人]

你的QextPortInfo实现了==操作符的重载了吗

[Inhibitory]

bool QList::operator==(const QList<T> & other) const Returns true if other is equal to this list; otherwise returns false. Two lists are considered equal if they contain the same values in the same order. This function requires the value type to have an implementation of operator==().

[看山不是山看水不是水]

楼上说的都对 要重载==操作符

[龙内cool]

引用 2 楼 Inhibitory 的回复:

bool QList::operator==(const QList<T> & other) const Returns true if other is equal to this list; otherwise returns false. Two lists are considered equal if they contain the same values in the same order. This function requires the value type to have an implementation of operator==().

template <typename T>
Q_OUTOFLINE_TEMPLATE bool QList<T>::operator==(const QList<T> &l) const
{
    if (p.size() != l.p.size())
        return false;
    if (d == l.d)
        return true;
    Node *i = reinterpret_cast<Node *>(p.end());
    Node *b = reinterpret_cast<Node *>(p.begin());
    Node *li = reinterpret_cast<Node *>(l.p.end());
    while (i != b) {
        --i; --li;
        if (!(i->t() == li->t()))
            return false;
    }
    return true;
}

这是QList.h里面的==的定义，请问只有一个参数怎么来进行比较？

[龙内cool]

引用 3 楼 ao834391367 的回复:

楼上说的都对 要重载==操作符

请问下这个操作符，能不能帮忙写下？实在是不知道怎么搞了。

[Chirive]

bool QextPortInfo::operator==(const QextPortInfo &other) { //在这里陈述下newPortInfo和currPortInfo为什么相等 }