added new examples

1 files changed, 63 insertions, 0 deletions

diff --git a/Big4_and_inheritance/Drinks/Drink.cpp b/Big4_and_inheritance/Drinks/Drink.cpp
new file mode 100644
index 0000000..709446b
--- /dev/null
+++ b/Big4_and_inheritance/Drinks/Drink.cpp
@@ -0,0 +1,63 @@
+#include "Drink.h"
+
+
+void Drink::CopyFrom(const Drink& other)
+{
+	int len = strlen(other.mark);
+	mark = new char[len + 1];
+	strcpy(mark, other.mark);
+
+	ml = other.ml;
+}
+void Drink::Free()
+{
+	delete[] mark;
+	ml = 0;
+}
+
+Drink::Drink()
+{
+	mark = new char[6];
+	strcpy(mark, "Water");
+	ml = 500;
+}
+Drink::Drink(const char* mark, int ml)
+{
+	int len = strlen(mark);
+	this->mark = new char[len + 1];
+	strcpy(this->mark, mark);
+	
+	setML(ml);
+
+}
+Drink::Drink(const Drink& other)
+{
+	CopyFrom(other);
+}
+Drink& Drink::operator=(const Drink& other)
+{
+	if (this != &other)
+	{
+		Free();
+		CopyFrom(other);
+	}
+	return *this;
+}
+Drink::~Drink()
+{
+	Free();
+}
+void Drink::setML(int ml)
+{
+	if (ml < 100 || ml> 1000)
+		ml = 500;
+	this->ml = ml;
+}
+int Drink::getML() const
+{
+	return ml;
+}
+const char* Drink::getMark() const
+{
+	return mark;
+}