add 012_Structures.cpp

Author: priteshgohil

012_Structures.cpp

@@ -0,0 +1,56 @@
+#include<iostream>
+
+
+struct Point {
+  int x,y;
+};
+
+struct Shelf {
+  const char *title;
+  const char *author;
+  union {
+    float dollars;
+    int euro;
+  };
+  enum {
+    Dollars = 1,
+    Euro = 2
+  } currency;
+}book;
+
+
+enum Side { Left, Right };
+struct House {
+  const char *adresse;
+  unsigned int nHouse_num;
+  Side enSide;
+};
+
+int main(int argc, char const *argv[]) {
+  struct Point stPoint; //struct keyword optional in c++, but must in C
+  stPoint.x = 33;
+  stPoint.y = 50;
+  std::cout << stPoint.x << '\n';
+
+  Point stPoint2 = {5,10}; // x=5 and y=10
+  Point stPoint3[40] = {}; //array of structure i.e. 40 points
+  std::cout << stPoint3[0].x << '\n';
+
+  // strcpy(book.title, "Live Good");
+  book.title = "Live Good";
+  book.author = "Unknown";
+  book.euro = 25.3;
+  book.currency = Shelf::Euro;
+  std::cout << book.title << '\n';
+
+  //declare enum inside stucture
+  House stHouse;
+  stHouse.adresse = "Max Müller";
+  stHouse.nHouse_num = 123;
+  stHouse.enSide = Left; // or Side::Left
+  House stPeter = {"Peter Klein", 124, Right};
+  std::cout << stPeter.adresse << '\n';
+
+
+  return EXIT_SUCCESS;
+}