update

morden_C++_30/RAII/stack.cpp

@@ -0,0 +1,26 @@
+//
+// Created by light on 19-12-9.
+//
+#include <iostream>
+class Obj {
+public:
+    Obj() { puts("Obj()"); }
+    ~Obj() { puts("~Obj()"); }
+};
+void foo(int n)
+{
+    Obj obj;
+    if (n == 42)
+        throw "life, the universe and everything";
+}
+// 不管是否发生了异常，obj 的析构函数都会得到执行。
+int main()
+{
+    try {
+        foo(41);
+        foo(42);
+    }
+    catch (const char* s) {
+        puts(s);
+    }
+}