Trying to tokenize a String in C++ which is read from a file, separated by commas, but I only need the first 3 data of every line.
For example: The lines look like this:
140,152,2240,1,0,3:0:0:0:
156,72,2691,1,0,1:0:0:0:
356,72,3593,1,0,1:0:0:0:
But I only need the first 3 data of these lines. In this case:
140, 152, 2240
156, 72, 2691
356, 72, 3593
I'm trying to add these data into a vector I just don't know how to skip reading a line from the file after the first 3 data.
This is my current code: (canPrint is true by default)
ifstream ifs; ifs.open("E:\\sample.txt"); if (!ifs) cout << "Error reading file\n"; else cout << "File loaded\n"; int numlines = 0; int counter = 0; string tmp; while (getline(ifs, tmp)) { //getline(ifs, tmp); // Saves the line in tmp. if (canPrint) { //getline(ifs, tmp); numlines++; // cout << tmp << endl; // Prints our tmp. vector<string> strings; vector<customdata> datalist; istringstream f(tmp); string s; while (getline(f, s, ',')) { cout << s << " "; strings.push_back(s); } cout << "\n"; } 