这段代码的Objectif是创建一个包围diffent模板设计(一个实现与总是相同的处理程序工作),但有了这个尝试我有以下错误"错误:请求成员'pushEvent'是模棱两可的"我不明白(消息底部错误的详细信息)
template<typename T>
struct EventHandler {
EventHandler() {}
inline void pushEvent(T & msg) {
printf("pushEvent %s", typeid(T).name());
q_.push(msg);
}
protected:
std::queue<T> q_;
};
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deferend模板的包装器(将添加一些方法来处理不同类型的事件
template<typename... EventHandler>
struct _EventsHandler : EventHandler... {
};
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// usage sample:我们创建将实例化事件管理器的类型
using EventHandlerType = EventsHandler<EventHandler<int>,EventHandler<float>,EventHandler<char>>;
int main(void) {
EventHandlerType test;
int msp = 1;
test.pushEvent(msp);
}
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我不明白模糊错误,因为msp类型是int,应该提供信息来解决歧义?
error: request for member 'pushEvent' is ambiguous
test.pushEvent(msp);
^
note: candidates are: void _EventHandler<T>::pushEvent(T&) [with T = char]
inline void pushEvent(T & msg) {
^
note: void _EventHandler<T>::pushEvent(T&) [with …Run Code Online (Sandbox Code Playgroud)