Question

I have got a std::string like this:

std::string fileName;

where fileName is like /tmp/fs////js//config.js
It is coming from somewhere and I need to store it. But when I store it, I need to remove extra ‘/’ chars from the path, basically need only one separator between directory names and file names.

I can remove these by iterating over the string one char at a time and comparing with the next char, but its not very efficient.

Can anyone suggest some efficient way to do it?

Answer 1

You’re not going to find anything more efficient than that – think about it – you need to remove consecutive duplicated characters – the imnplication is that, even in the best case, you’re going to have to look at every character at least once.