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1 files changed, 41 insertions, 0 deletions

diff --git a/6p22.cpp b/6p22.cpp
new file mode 100644
index 0000000..91f4bcd
--- /dev/null
+++ b/6p22.cpp
@@ -0,0 +1,41 @@
+#include <iostream>
+
+/*
+ *
+ * 6.22
+ *
+ *
+ */
+
+void SwapIntPtr(int **p1, int **p2) {
+
+	int *p1tmp = *p1;
+	*p1 = *p2;
+	*p2 = p1tmp;
+}
+
+void SwapIntPtrREF(int *&p1, int *&p2) {
+
+	int *p1tmp = p1;
+	p1 = p2;
+	p2 = p1tmp;
+}
+
+int main () {
+	
+	int i1 = 10;
+	int i2 = 21;
+	int i3 = 13213;
+	int i4 = 2331;
+	int *p1 = &i1;
+	int *p2 = &i2;
+	int *p3 = &i3;
+	int *p4 = &i4;
+	std::cout << "p1 " << p1 << "\np2 " << p2 << std::endl;
+	SwapIntPtr(&p1, &p2);
+	std::cout << "p1 " << p1 << "\np2 " << p2 << std::endl;
+	std::cout << "\np3 " << p3 << "\np4 " << p4 << std::endl;
+	SwapIntPtrREF(p3, p4);
+	std::cout << "p3 " << p3 << "\np4 " << p4 << std::endl;
+	return 0;
+}