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晚上好,我試圖在主函數中調用我的void函數「getProblems」,但是在輸出沒有參數的「getProblems」時會得到一個額外的值。同樣,當傳遞參數時,如「getProblems(list,i)」,我得到錯誤「沒有操作符」< <'匹配這些操作數「。目標是輸出我的文本文件包含的問題數量,而不使用返回值或使用指針的函數。如何使用數組和參考參數調用void函數
#include<iostream>
#include<iomanip>
#include<string>
#include<fstream>
using namespace std;
int const MAX_PROBLEMS = 50;
void getProblems(string problem[], int& count);
int main()
{
string list[MAX_PROBLEMS] = {};
int i = 0;
cout << "There are " << getProblems << " problems. " << endl;
// I have also tried calling the void function with parameters
// cout << "There are " << getProblems(list, i) << "problems. " << endl;
return 0;
}
void getProblems(string problem[], int& count)
{
ifstream mathProblems;
mathProblems.open("P4Problems.txt");
if (!mathProblems)
{
cout <<"No file was found."<< endl;
}
count = 0;
string data;
getline(mathProblems, data);
while (!mathProblems.eof())
{
problem[count] = data;
count ++;
mathProblems >> data;
}
mathProblems.close();
}
你好songyuanyao,我試圖傳遞一個字符串數組「列表」和int「我」,可是你要描述的錯誤消息我帖子。 –