X-Git-Url: https://git.ralfj.de/rust-101.git/blobdiff_plain/9f6c55ebcab2e1d3073e8bb6c8c910d0116efee4..8fcdbed310c53f621fba0401399659ed1a1ec446:/TODO.txt

diff --git a/TODO.txt b/TODO.txt
index 39d060c..73c82b1 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -1,11 +1,11 @@
 * Closures: Working on iterators
+
 * Arrays/slices
 * Trait objects
-* Drop
-* ?unsafe?
-* ?interior mutability?
 
 * Arc, concurrency, channels: Some grep-like thing, "rgrep"
 * Send, Sync
 * External dependencies: regexp crate, add to rgrep
-* 
\ No newline at end of file
+
+* Shared-memoty concurrency, interior mutability: Concurrent counter
+* Drop, unsafe: doubly-linked list