trim_copy doesn't support string_ref

[ml@…]

boost::string_ref z = "  AA BB  ";
boost::string_ref b = boost::trim_copy(z);

does not compile

[Marshall Clow]

Short answer: trim_copy returns a new container of the same type containing a copy of the input (w/o leading and trailing spaces)

Since string_ref doesn't actually own the underlying characters, it can't make a copy of them and return a string_ref to the copy. (where would it put the characters that it copied?)

That being said, I could see how trim (not trim_copy) on a string_ref could be a desired features.

Changing to a feature request.

[Olaf van der Spek <ml@…>]

Would trim return a new string_ref or would it update it's input argument? I'd like a variant that returns a new string_ref.

[Marshall Clow]

Changing this bug as a test of the trac notification system.