从文件中部分填充数组

问题描述

我需要用文件中的数据部分填充2个数组，并保持它们并行。但我现在的代码给我看起来像giberish的错误。如果有人甚至可以帮助我解码错误，我会非常感谢。

I need to partially fill 2 arrays with data from a file and keep them parallel. But my current code gives me errors that look like giberish. If someone could even just help me decode the errors i would be very grateful.

代码：

/***************************************************/
/* Author:     Sam LaManna                         */
/* Course:     CSC 135 Lisa Frye                   */
/* Assignment: Program 6 Elves                     */
/* Due Date:   11/22/11                            */
/* Filename:   program6.cpp                        */
/* Purpose:    Write a program that will process   */
/*             the work done by santas elfs        */
/***************************************************/

#include <iostream>     //Basic input/output
#include <iomanip>      //Manipulators
#include <string>       //String stuff 
#include <fstream>      //File input/output

using namespace std;

void instruct ();     //Function Declaration for printing instructions 
void input (ifstream &infile, string names [50], int numoftoys[50]);    //Function declaration for getting data from file

int main()
{

  string names [50] = { };       //Array for storing names
  int numoftoys [50] = { };      //Array for storing the number of toys made

  ifstream infile("eleves.dat"); //Opens input file "elves.dat"

  instruct();     //Function call to print instructions

  while (!infile.eof())
    {
      input (names [50], numoftoys [50]);
    }

  cout << names << "\n" << "\n";

  cout << numoftoys << "\n" << "\n";




  return 0;
}




/***************************************************/
/* Name: instruct                                  */
/* Description: Prints instructions to user        */
/* Parameters: N/A                                 */
/* Return Value: N/A                               */
/***************************************************/

void instruct ()                                   
{
  cout << "\n" << "This program will calculate the toys made by santas elfs and assign" << "\n";
  cout << "a rating to each elf. It will also sort them and print average, min and max." << "\n";
  cout << "\n" << "Make sure you have a file named elves.dat in the same directory as";
  cout << "this porgram or you will recieve errors.";
  cout << "\n" << "\n";

  return;
}


/***************************************************/
/* Name: input                                     */
/* Description: Reads from file                    */
/* Parameters: N/A                                 */
/* Return Value: N/A                               */
/***************************************************/

void input (ifstream &infile, string names [50], int numoftoys[50])
{
  infile >> names >> numoftoy;
  infile.ignore ("\n");

  return;
}

错误：

直接链接：

推荐答案

istream::operator>> has overloads for neither arrays of strings nor arrays of integers.

您必须一次读取一个字符串和每个整数。最初由发布

You'll have to read each string and each integer in one at a time. Originally posted by @Seth Carnegie

input (infile, names, numoftoys); //your call was completely wrong

infile.ignore ('\n'); //notice the char instead of string

infile >> names >> numoftoys; //this won't work like this but at least we fixed the declaration error

使用std :: vector等，我们可以提供更多的C ++答案。还请避免使用 - using namespace std;

If you are allowed to use std::vector, etc. We could provide a more C++ answer. Also please avoid using - using namespace std;

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