Split a string into an array in C++

Question

Possible Duplicate:
How to split a string in C++?

I have an input file of data and each line is an entry. in each line each "field" is seperated by a white space " " so I need to split the line by space. other languages have a function called split (C#, PHP etc) but I cant find one for C++. How can I achieve this? Here is my code that gets the lines:

string line;
ifstream in(file);

while(getline(in, line)){

  // Here I would like to split each line and put them into an array

}

Answer 1

#include <sstream>  //for std::istringstream
#include <iterator> //for std::istream_iterator
#include <vector>   //for std::vector

while(std::getline(in, line))
{
    std::istringstream ss(line);
    std::istream_iterator<std::string> begin(ss), end;

    //putting all the tokens in the vector
    std::vector<std::string> arrayTokens(begin, end); 

    //arrayTokens is containing all the tokens - use it!
}

By the way, use qualified-names such as std::getline, std::ifstream like I did. It seems you've written using namespace std somewhere in your code which is considered a bad practice. So don't do that:

• Why is "using namespace std" considered bad practice?