centralized performance resources

perf-cpp/scripts/struct.cc

@@ -0,0 +1,40 @@
+#include <iostream>
+
+class S {
+  // void print() const { a = 3; std::cout << S::a << '\n'; }
+  int a = 0;
+
+ public:
+  S(int x) : x(x) {
+  }
+  int x{2};
+};
+
+class X {
+  int x;
+
+ public:
+  X() : x(0) {};
+  void get() {
+    std::cout << "x; " << x << '\n';
+  }
+  int& y() {
+    return x;
+  }
+};
+
+int main() {
+  // S{}.print();
+  // S.x;
+  // std::cout << S{3}.x << '\n';
+
+  X x;
+  auto& ret = x.y();
+
+  // ++ret;
+
+  x.get();
+
+  // X x;
+  return 0;
+}