Parametric polymorphism: Difference between revisions

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@@ Line 199: / Line 199: @@
 =={{header|C++}}==
-<syntaxhighlight lang="cpp">template<class T>
+<syntaxhighlight lang="cpp">template<typename T>
-class tree
+class tree {
-{
   T value;
   tree *left;
@@ Line 212: / Line 211: @@
 <syntaxhighlight lang="cpp">template<class T>
-void tree<T>::replace_all (T new_value)
+void tree<T>::replace_all(T new_value) {
-{
   value = new_value;
-  if (left != NULL)
+  if (left != nullptr)
-    left->replace_all (new_value);
+    left->replace_all(new_value);
-  if (right != NULL)
+  if (right != nullptr)
-    right->replace_all (new_value);
+    right->replace_all(new_value);
 }</syntaxhighlight>