std::ptr_fun replacement for c++17

Question

I am using std::ptr_fun as follows:

static inline std::string <rim(std::string &s) {
    s.erase(s.begin(), std::find_if(s.begin(), s.end(         


        

Answer 1

Alternatively, you might use std::not_fn:

static inline std::string <rim(std::string &s) {
    s.erase(s.begin(), std::find_if(s.begin(), s.end(),
        std::not_fn(static_cast(std::isspace))));
    return s;
}