Question

I have two char* strings and a char* literal that I need to combine into a single std::string. Below is what I am doing. It works, but I don’t like the way it looks (3 lines to accomplish it). I am wondering if there is a better way to do it…

std::string strSource = _szImportDirectory;
strSource += "\\";
strSource += _szImportSourceFile;

Thanks for you help!

Answer 1

std::string strSource = std::string(_szImportDirectory) + "\\" + _szImportSourceFile;

Is one obvious way.

Another way is to use std::stringstream:

std::stringstream s;
s << _szImportDirectory << '\\' + _szImportSourceFile;
std::string strSource = s.str()

That’s the most flexible and maintainable way to do it but it still requires three lines.