more exercises

1 files changed, 30 insertions, 0 deletions

diff --git a/2p30-2p31.cpp b/2p30-2p31.cpp
new file mode 100644
index 0000000..eecbdbd
--- /dev/null
+++ b/2p30-2p31.cpp
@@ -0,0 +1,30 @@
+#include <iostream>
+#include "sales_item.hpp"
+
+/*
+ *
+ * 2.30, 2.31
+ *
+ *
+ */
+
+int main () {
+	//int i;
+	//const int v2 = 0; // top level ??
+	//int v1 = v2;
+	//int *p1 = &v1, &r1 = v1;
+	//const int *p2 = &v2, *const p3 = &i, &r2 = v2; // p2 low level
+	                                               // p3 top level ?? and low level??
+	                                               // r2 low level ?
+	//r1 = v2; low level
+	//p1 = p2; low level?
+	//p1 = p3; no?
+	//p2 = p1; ok?
+	//p2 = p3; ok?
+	int v1 = 2;
+	const int v2 = 0;
+	int &r = v1;
+	r = v2;
+	std::cout << r << std::endl;
+	return 0;
+}