update

codingStyleIdioms/5_pImpl/pimpl.cpp

@@ -0,0 +1,48 @@
+//
+// Created by light on 19-12-9.
+//
+
+#include <iostream>
+using namespace std;
+
+// pImpl: Pointer-to-Implementation
+
+class private_foo;
+class foo {
+public:
+    foo();
+
+    ~foo();
+
+    void bar();
+
+private:
+    private_foo *pImpl;
+};
+
+class private_foo {
+public:
+    void bar() {
+        cout<<"private_foo invoke bar funciton."<<endl;
+    }
+
+private:
+    int m1;
+    string m2;
+};
+
+foo::foo() : pImpl(new private_foo()) {
+}
+
+foo::~foo() {
+}
+
+void foo::bar() {
+    pImpl->bar();
+}
+
+
+int main() {
+    foo f;
+    f.bar();
+}