For example:
Adam Peter Eric John Edward Wendy I wanted to store in 3 strings array (each line represents an array), but I am stuck on how to read it line by line.
Here is my code:
string name [3][3] ; ifstream file ("TTT.txt"); for (int x = 0; x < 3; x++){ for (int i = 0; x < 3; i++){ while (!file.eof()){ file >> name[x][i]; } } } cout << name[0][0]; cout << name[0][1]; cout << name[0][2]; cout << name[1][0]; cout << name[1][1]; cout << name[2][0]; }
You can use std::getline to directly read a full line. After that, just get the individual substrings by using the space as the delimiter:
std::string line; std::getline(file, line); size_t position; while ((position =line.find(" ")) != -1) { std::string element = line.substr(0, position); // 1. Iteration: element will be "Adam" // 2. Iteration: element will be "Peter" // … } You can use std::getline():
std::ifstream file ("TTT.txt"); std::string line; std::string word; std::vector< std::vector<std::string> > myVector; // use vectors instead of array in c++, they make your life easier and you don't have so many problems with memory allocation while (std::getline(file, line)) { std::istringstream stringStream(line); std::vector<std::string> > myTempVector; while(stringStream >> word) { // save to your vector myTempVector.push_back(word); // insert word at end of vector } myVector.push_back(myTempVector); // insert temporary vector in "vector of vectors" } Use stl structures in c++ (vector, map, pair). They usually make your life easier and you have less problems with memory allocation.
myVector[0][0], for example.