How to strip all non alphanumeric characters from a string in c++?

Question

I am writing a piece of software, and It require me to handle data I get from a webpage with libcurl. When I get the data, for some reason it has extra line breaks in it. I

Answer 1

Below code should work just fine for given string s. It's utilizing and libraries.

std::string s("He!!llo  Wo,@rld! 12 453");
s.erase(std::remove_if(s.begin(), s.end(), [](char c) { return !std::isalnum(c); }), s.end());