printing lines from files

Question

I'm trying to print the first line from each file but I think its outputting the address instead.

#include <fstream>
#include <iostream>
#include <cstdlib>

using namespace std;

void FirstLineFromFile(ifstream files[], size_t count)
{
    const int BUFSIZE = 511;        
    char buf[BUFSIZE];

    ifstream *end, *start;

    for (start = files, end = files + count; start < end; start++)
    {
        cout << start->getline(buf, sizeof(buf)) << '\n';   
    }   
}

Answer 1

streams should not be passed by value. This code passes an array of streams by value. You can try to pass a vector instead and interate over them.

void FirstLineFromFile(vector<ifstream*> files) {
    for (int i=0; i<files.size(); ++i) {
        string s;
        getline(*files[i], s);
        cout << s << endl;
    }
}