ownership

I'm trying to code a generic recursive data structure. As it turns out, I can't as I'm hitting a wall when I want to access more than one field of an owned struct value. I define a struct that will hold a list: struct ListNode<T> { val: T, tail: List<T> } struct List<T>(Option<Box<ListNode<T>>>); The empty list is represented by List(None) . I want to be able to append to a list: impl<T> List<T> { fn append(self, val: T) -> List<T> { match self { List(None) => List(Some(Box::new(ListNode { val: val, tail: List(None), }))), List(Some(node)) => List(Some(Box::new(ListNode { val: node.val, tail:

Per Steve Klabnik's writeup in the pre-Rust 1.0 documentation on the difference between String and &str , in Rust you should use &str unless you really need to have ownership over a String . Similarly, it's recommended to use references to slices ( &[] ) instead of Vec s unless you really need ownership over the Vec . I have a Vec<String> and I want to write a function that uses this sequence of strings and it doesn't need ownership over the Vec or String instances, should that function take &[&str] ? If so, what's the best way to reference the Vec<String> into &[&str] ? Or, is this coercion

I need a function or method in Python to find the owner of a file or directory. The function should be like: >>> find_owner("/home/somedir/somefile") owner3 asveikau I'm not really much of a python guy, but I was able to whip this up: from os import stat from pwd import getpwuid def find_owner(filename): return getpwuid(stat(filename).st_uid).pw_name Kurt You want to use os.stat() : os.stat(path) Perform the equivalent of a stat() system call on the given path. (This function follows symlinks; to stat a symlink use lstat().) The return value is an object whose attributes correspond to the

I have been noticing that when I pull from my github repo on a development server(Red Hat) the ownership of the files change after the pull is completed. The .git file used to be owned by me but then I noticed that it would write files as me and I need it to write files as a different user. So i changed the ownership of the .git directory. I stumbled on to git config core.filemode which was true. I since have set to it false. I have not seen a difference after setting this to false. What should I do to keep my files ownership from changing. This doesn't happen to me locally. If it suffices to

I'm trying to overcome the following situation. Given a directory stored on an NTFS volume, where: The directory owner is set to someone else (a non-privileged user for example) The directory DACL is configured to permit access to a specific group of people that does not include the system or Administrators The DACL on the directory actually grants no one access to either take ownership or change the DACL (or in short, the all administrators have been locked out of the folder) But! The account I am running under has administrative rights (SeBackupPrivilege, SeSecurityPrivilege) The existing