Boost::split in C++

The C++ use boost::split function from the Boost C++ Libraries to split a string into substrings based on a specified delimiter. To use this function, make sure you have the Boost Libraries installed and included in your project. Here’s how to use boost::split:

#include <iostream>
#include <vector>
#include <string>
#include <boost/algorithm/string.hpp>

int main() {
    std::string input_string = "apple,banana,cherry,grape";
    std::vector<std::string> tokens;

    // Use boost::split to split the input string by comma (',') delimiter
    boost::split(tokens, input_string, boost::is_any_of(","));

    // Iterate over the resulting tokens and print them
    for (const std::string& token : tokens) {
        std::cout << token << std::endl;
    }

    return 0;
}

In this example:

1. Include the necessary headers: <iostream>, <vector>, <string>, and <boost/algorithm/string.hpp>.
2. Create a std::string named input_string that contains the string you want to split.
3. Create a std::vector<std::string> named tokens to store the resulting substrings.
4. Use boost::split to split the input_string into substrings based on the comma (‘,’) delimiter. The boost::is_any_of(",") function specifies the delimiter.
5. Iterate over the tokens vector to access and print each of the resulting substrings.

Remember to install and link the Boost Libraries to your project, as they are not part of the C++ Standard Library. You might also need to set up your development environment to correctly find the Boost libraries if they are not in standard library directories.