refStringNewLen
fn
string refStringNewLen(string str, ptrdiff_t len)Creates a new reference counted string and copies the contents of str into it, up to len bytes.
Since this function does not stop at nul bytes, it is the caller's responsibility to ensure that str has at least len addressable bytes.
Parameters
str | a string |
len | length of str to use, or -1 if str is nul-terminated |
Returns
the newly created reference counted string