c++ - 3 智能感知 : declaration is incompatible with " Airport::getDetails(std::string)"

Question

收到这个错误

我知道这与声明和定义不匹配有关，但我似乎无法确定。

任何帮助将不胜感激:)

IntelliSense: declaration is incompatible with "<error-type> 
Airport::getDetails(std::string)" (declared at line 16 of "z:\documents\visual studio 2010\projects\oo_cw\oo_cw\Airport.h") 
z:\documents\visual studio 2010\projects\oo_cw\oo_cw\airport.cpp    50  22  OO_CW

这是我的头文件和cpp文件

标题

#pragma once
#include <string>
#include "std_lib_facilities.h"


class Airport
{
public:
Airport();
~Airport(void);
//Modifiers
void setName(string);
void addConnection(string,double,double);
void setTax(double);
//Accessors
string getName();
connections getDetails(string) const ;
double getTax();

private:
string name;
Vector<connections> destinations;
double tax;
};

cpp

#include "Airport.h"
#include <string>
#include "std_lib_facilities.h"
using namespace std;

struct connections {
    string destName;
    double price;
    double time;
};

Airport::Airport()
{
name = "";
tax = 0.0;

};




Airport::~Airport(void)
{
};

void Airport::setName(string airportName){
Airport::name = airportName;
}
void Airport::setTax(double airportTax){
tax = airportTax;
}

void Airport::addConnection(string conName, double conPrice, double conTime){
connections newConnection;
newConnection.destName = conName;
newConnection.price = conPrice;
newConnection.time = conTime;
destinations.push_back(newConnection);
}

string Airport::getName(){
return name;
}

double Airport::getTax(){
return tax;
}

connections Airport::getDetails(string reqName) const {
for(int i =0;i<destinations.size();i++){
    if(destinations[i].destName==reqName){
        return destinations[i];
    }
}
}

Answer 1

1. 您必须将 connections 定义放在头文件中类 Airport 定义之上。
2. 你的函数 Airport::getDetails() 必须为简单的情况返回一些东西，其中 destinations.size() == 0，(见下面的代码)。
3. 是否有特殊原因不使用 std::vector 代替 Vector？

---

connections Airport::getDetails(string reqName) const {
  for (int i = 0; i<destinations.size(); i++){
    if (destinations[i].destName == reqName){
      return destinations[i];
    }
  }
  return connections{"", 0.0, 0.0};
}