1 files changed, 32 insertions, 0 deletions
diff --git a/week11/Exercise09/DirectConcat.hpp b/week11/Exercise09/DirectConcat.hpp
new file mode 100644
index 0000000..53f420b
--- /dev/null
+++ b/week11/Exercise09/DirectConcat.hpp
@@ -0,0 +1,32 @@
+#pragma once
+#include "MixedArray.hpp"
+
+template <class T, class U>
+class DirectConcat : public MixedArray<T, U> {
+public:
+	virtual MixedArray<T, U>* operator+=(const MixedArray<T, U>* other) override;
+};
+
+template <class T, class U>
+MixedArray<T, U>* DirectConcat<T, U>::operator+=(const MixedArray<T, U>* other) {
+	T* biggerFirst = new T[this->allocated + other->allocated];
+	U* biggerSecond = new U[this->allocated + other->allocated];
+
+	for (int i = 0; i < this->size; i++) {
+		biggerFirst[i] = this->first[i];
+		biggerSecond[i] = this->second[i];
+	}
+	for (int i = 0; i < other->size; i++) {
+		biggerFirst[this->size + i] = other->first[i];
+		biggerSecond[this->size + i] = other->second[i];
+	}
+
+	delete[] this->first;
+	this->first = biggerFirst;
+	delete[] this->second;
+	this->second = biggerSecond;
+	this->allocated += other->allocated;
+	this->size += other->size;
+
+	return this;
+}