more exercises

1 files changed, 27 insertions, 0 deletions

diff --git a/2p25.cpp b/2p25.cpp
new file mode 100644
index 0000000..e97dec3
--- /dev/null
+++ b/2p25.cpp
@@ -0,0 +1,27 @@
+#include <iostream>
+#include "sales_item.hpp"
+
+/*
+ *
+ * 2.25
+ *
+ *
+ */
+
+int main () {
+
+	int *p = nullptr;
+	int i = 10;
+	int &r = i;
+	//           addr         10          10
+	std::cout << &p << " " << i << " " << r << std::endl;
+
+	int i2 = 11;
+	int *ip = 0; // AKA nullptr AKA NULL
+	std::cout << i2 << " " << &ip << std::endl;
+
+	int *ip2 = nullptr;
+	int ip3 = 99;
+	std::cout << ip3 << " " << &ip2 << std::endl;
+	return 0;
+}