1 files changed, 11 insertions, 8 deletions
diff --git a/euler/include/std/list.hpp b/euler/include/std/list.hpp
index 77eaaec..c0d6e21 100644
--- a/euler/include/std/list.hpp
+++ b/euler/include/std/list.hpp
@@ -19,11 +19,11 @@ namespace std {
 
       node *the_node;
 
-      bool operator ==(const generic_iterator &other) {
+      bool operator ==(const generic_iterator &other) const {
         return the_node == other.the_node;
       }
 
-      bool operator !=(const generic_iterator &other) {
+      bool operator !=(const generic_iterator &other) const {
         return the_node != other.the_node;
       }
 
@@ -82,13 +82,14 @@ namespace std {
       return iterator { .the_node = r };
     }
 
-    iterator begin() const noexcept {
-      return iterator { .the_node = first_node };
-    }
+    iterator begin() noexcept { return iterator { .the_node = first_node }; }
+    iterator   end() noexcept { return iterator { .the_node = 0 }; }
 
-    iterator end() const noexcept {
-      return iterator { .the_node = 0 };
-    }
+    const_iterator begin() const noexcept { return iterator { .the_node = first_node }; }
+    const_iterator   end() const noexcept { return iterator { .the_node = 0 }; }
+
+    const_iterator cbegin() const noexcept { return iterator { .the_node = first_node }; }
+    const_iterator   cend() const noexcept { return iterator { .the_node = 0 }; }
 
     size_t remove(const T &value) {
       size_t removed = 0;
@@ -140,6 +141,7 @@ namespace std {
       clear();
       for (node *n = other.first_node; n; n = n->next)
         push_back(n->value);
+      return *this;
     }
 
     list &operator =(list &&other) {
@@ -150,6 +152,7 @@ namespace std {
       other.first_node = 0;
       other.last_node = 0;
       other.count = 0;
+      return *this;
     }
 
   };