Remove newline from std::string by "remove" function only is not working?

Test :

calling following:

remove(strRet.begin(), strRet.end(), '\n');

strRet is a std::string containing newline


It's not working!!!!!!!!!!!
if someone print it out....

Reson:

The function cannot alter the properties of the object containing the range of elements (i.e., it cannot alter the size of an array or a container)

Solution:

strRet.erase(remove(strRet.begin(), strRet.end(), '\n'), strRet.end());

1. Calling remove and get a new end of std::string
2. Erase the removed part