Regex \w escaping in C++11

Question

This code isn\'t returning anything, am I escaping the w character the wrong way??

http://liveworkspace.org/code/3bRWOJ$38

#include 
         


        

Answer 1

The regular expression should contain \w, consisting of two characters, \ and w, hence your C++ source code should contain "\\w" as you need to escape the backslash.