[英]ISO C++ forbids declaration of ‘multimap’ with no type
There seems to be a problem in the way that I am declaring my multimap: 我声明多图的方式似乎存在问题:
std::multimap<int, std::string> table;
I keep getting the following error message and am quite stuck on how to solve this! 我不断收到以下错误消息,并且对如何解决此问题相当困惑!
error: ISO C++ forbids declaration of ‘multimap’ with no type
error: invalid use of ‘::’
error: expected ‘;’ before ‘<’ token
This is my first time trying multimap in C++, and I'm sorry if this seems a trivial problem. 这是我第一次在C ++中尝试多图,如果这是一个小问题,我感到抱歉。 Could someone please point me in the right direction? 有人能指出我正确的方向吗?
In my central.h I have the following code 在我的central.h中,我有以下代码
class Central{
private:
int address;
std::multimap<int, std::string> table;
public:
Central(int _address);
In central.cpp: 在central.cpp中:
#include <iostream>
#include <string>
#include <sstream>
#include <map>
using namespace std;
#include "central.h"
Central::Central(int _address)
{
address = _address;
}
Thank you for your time! 感谢您的时间! :) :)
You haven't #include
d <map>
. 您尚未#include
d <map>
。 That's why the compiler thinks that multimap is a variable rather than a type. 这就是为什么编译器认为multimap是变量而不是类型的原因。
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