Splitting a .txt file by line

[tc48]

Hello

I'm not very familiar with C++, but I am trying to make a quick program for a very specific task. I know its not usually good to ask for a plug and chug solution, but thats what I am in need of.

I have a txt file with 10,000 lines, each with a single number ranging from 2 to 14. I simply want to throw all the numbers into an array so they can be called in a loop.

I've looked at the strtok() function but I'm not sure what I'd break by (what signifies a line break) and how I'd put each piece in an array.

I'm coming from PHP and C++ is a totally different world (obviously) so please be patient with me.

I am using Microsoft Visual C++ Express Edition.

Thanks for your help!

[Elysia]

The easiest way I see, if all lines contain just a single number, is to read line-by-line with getline and then use strtol (or tricky string streams) to convert to a number and then store in an array:

std::istream ifile("myfile");
std::string line;
long num;
std::vector<long> vNumbers;
getline(line, ifile);
vNumbers.push_back( strtol(line) );

You could work from that code.

[cyberfish]

or something like

std::ifstream fin("file.txt");
std::vector<int> nums;
while ( !fin.eof() ) {
     int x;
     fin >> x;
     nums.push_back(x);
}

ps. what you need here, I believe, is a vector instead of an array. A vector in C++ is more or less equivalent to an array in PHP. An array in C++ cannot change size (not easily at least), and does not know its own size (you cannot do something like "int a[5]; for (int i = 0; i < a.size(); ++i) { ... }" ).