added new examples

1 files changed, 45 insertions, 0 deletions

diff --git a/Big4_basic_examples/TestClass/TestClass.cpp b/Big4_basic_examples/TestClass/TestClass.cpp
new file mode 100644
index 0000000..fe5692b
--- /dev/null
+++ b/Big4_basic_examples/TestClass/TestClass.cpp
@@ -0,0 +1,45 @@
+#include "TestClass.h"
+
+
+TestClass::TestClass() : TestClass(0, 0, "Unknown")
+{
+
+}
+TestClass::TestClass(int a, int b, const char* str)
+{
+	this->a = a;
+	this->b = b;
+	name = new char[strlen(str) + 1];
+	strcpy(name, str);
+}
+TestClass::TestClass(const TestClass& other)
+{
+	CopyFrom(other);
+	//name = other.name  NO! only the pointer will be copied.
+}
+
+TestClass& TestClass::operator=(const TestClass& other)
+{
+	if (this != &other)
+	{
+		Free();
+		CopyFrom(other);
+	}
+	return *this; // this   TestClass*
+}
+TestClass::~TestClass()
+{
+	Free();
+}
+void TestClass::CopyFrom(const TestClass& other)
+{
+	name = new char[strlen(other.name) + 1];
+	strcpy(name, other.name);
+	a = other.a;
+	b = other.b;
+}
+void TestClass::Free()
+{
+	delete[] name;
+	a = b = 0;
+}