AK: Add a TemporaryChange helper class.

luteresa · Feb 6, 2019 · 781f216 · 781f216
1 parent 8cc6e30
commit 781f216
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/AK/TemporaryChange.h b/AK/TemporaryChange.h
@@ -0,0 +1,18 @@
+#pragma once
+
+namespace AK {
+
+template<typename T>
+class TemporaryChange {
+public:
+ TemporaryChange(T& variable, T value) : m_variable(variable), m_old_value(variable) { m_variable = value; }
+ ~TemporaryChange() { m_variable = m_old_value; }
+
+private:
+ T& m_variable;
+ T m_old_value;
+};
+
+}
+
+using AK::TemporaryChange;