What's the best way to trim std::string?

Question

I'm currently using the following code to right-trim all the `std::strings` in my programs: std::string s; s.erase(s.find_last_not_of(" \\n\\r\ ")+1); It works fine, but I wonder if there are some end-cases where it might fail? Of course, answers with elegant alternatives and also left-trim solution are welcome.

Answer 1

//strim trimming functions

char *ltrim(char *s)

{

while(isspace(*s)) s++;

return s;

}

char *rtrim(char *s)

{

char* back = s + strlen(s);

while(isspace(*--back));

*(back+1) = '\0';

return s;

}

char *trim(char *s)

{

return rtrim(ltrim(s));

}