">>"를 stringstream과 함께 사용하면 어디에서나 오류가 발생합니다. 다른 형식이 아닌 AbsClass
으로 작업하려면 >> 오버로드 만했기 때문에이 오류가 발생하는 이유는 알 수 없습니다.둘 이상의 연산자 ">>"는이 피연산자와 일치합니다
#include "Queue.h"
#include "AbsClass.h"
#include <fstream>
#include <iostream>
#include <iomanip>
#include <sstream>
using namespace std;
int main()
{
ifstream read;
try
{
read.open("TopicGin.txt");
if (!read)
throw QueueException();
}
catch (QueueException&)
{
cerr << "Could not find input file.\n";
char endchar = getchar();
if(endchar == '\nn')
return 0;
}
string line;
getline(read, line);
stringstream stream;
stream << line;
int buffer;
Queue <int> q1;
while (stream >> buffer)
{
q1.enqueue(buffer);
cout << buffer << ' ';
cout << "count is ";
q1.displayCount();
}
cout << q1.peek();
q1.dequeue();
cout << q1.peek();
Queue<int> q2 = q1;
q2.peek();
cout << "\n The contents of q2 with queue size " << q2.getSize() << " are: \n";
q2.displayArray();
//NEED EXCEPTIONS FOR THIS PART JUST SEETING UP
cout << " Attempt to create a queue of int with an invalid size.\n";
Queue<int> q3(-1);
cout << "Create queue object of double q4 with a size of 14.\n";
Queue<double> q4(14);
cout << "Read in values from the input file. \n";
stream.clear();
double dBuf;
getline (read, line);
stream << line;
while (stream >> dBuf)
{
q4.enqueue(dBuf);
cout << dBuf << ' ';
cout << "count is ";
q4.displayCount();
}
cout << fixed << setprecision(2);
cout << q4.peek();
q4.dequeue();
cout << q4.peek();
cout << "Create Queue object of 5 which is a copy of q4\n";
Queue<double> q5 = q4;
q5.peek();
q5.displayArray();
//EXCEPTIONS AGAIN DLFKJALDKAJ
cout << "Attempt to peek an empty queue. \n";
Queue<double> q6;
q6.peek();
cout << "Create Queue object of AbsClass q7 with default size. \n";
cout << "Read in values from input file \n";
Queue<AbsClass> q7;
cout << "Read in values from the input file. \n";
AbsClass AbsBuf;
getline (read, line);
stream.clear();
stream << line;
while (stream >> AbsBuf)
{
q7.enqueue(AbsBuf);
cout << AbsBuf << ' ';
cout << "count is ";
q7.displayCount(); 0
}
return 0;
}
리터
#include<iostream>
#include<cmath>
#include <string>
// JAMES: ADDED THIS:
#include <sstream>
using namespace std;
// JAMES: ADDED THIS:
stringstream& operator>>(stringstream& stream, AbsClass& obj);
class AbsClass
{
public:
AbsClass(int val = 0){num = abs(val);} // Inlined constructor
int getNum()const {return num;}
// JAMES: ADDED THIS:
void setNum(int newNum) { num = abs(newNum); }
private:
int num;
};
// JAMES: ADDED THIS:
stringstream& operator>>(stringstream& stream, AbsClass& obj)
{
int buffer;
stream >> buffer;
obj.setNum(buffer);
return stream;
}
K
#include "AbsClass.h"
#include <sstream>
using namespace std;
// JAMES: ADDED THIS:
istream& operator>>(istream& stream, AbsClass& obj);
istream& operator>>(istream& stream, AbsClass& obj)
{
int buffer;
stream >> buffer;
obj.setNum(buffer);
return stream;
}
일반적으로 'std :: istream &'에 오버로드됩니다. – chris