Move-Ctor implemented for scope guard (fixes #6).

include/scope_guard.h

@@ -16,7 +16,12 @@ namespace sg
         {
         }
 
-        scope_guard_t(scope_guard_t&&)= default;
+        scope_guard_t(scope_guard_t&& other) : m_deleter(std::move(other.m_deleter)),
+                                            m_execute_on_destruction(other.m_execute_on_destruction)
+        {
+            other.release();
+        }
+
         scope_guard_t(const scope_guard_t&) = delete;
 
         ~scope_guard_t()

test/ScopeGuardTest.cpp

@@ -26,3 +26,41 @@ TEST_CASE("deleter is not called if released", "[ScopeGuard]")
     REQUIRE(executed == false);
 }
 
+TEST_CASE("move releases moved-from object", "[ScopeGuard]")
+{
+    std::size_t calls{0};
+
+    {
+        auto movedFrom = sg::scope_guard([&calls] { ++calls; });
+        auto guard = std::move(movedFrom);
+
+    }
+
+    REQUIRE(calls == 1);
+}
+
+TEST_CASE("move transfers state", "[ScopeGuard]")
+{
+    bool executed = false;
+
+    {
+        auto movedFrom = sg::scope_guard([&executed] { executed = true; });
+        auto guard = std::move(movedFrom);
+    }
+
+    REQUIRE(executed == true);
+}
+
+TEST_CASE("move transfers state if released", "[ScopeGuard]")
+{
+    bool executed = false;
+
+    {
+        auto movedFrom = sg::scope_guard([&executed] { executed = true; });
+        movedFrom.release();
+        auto guard = std::move(movedFrom);
+    }
+
+    REQUIRE(executed == false);
+}
+