組み込みシステム開発におけるC++のデータキャッシュとバッファ管理機能の実践

#include <iostream>
#include <vector>

using namespace std;

class DataCache {
private:
    vector<int> cache;

public:
    void addData(int data) {
        cache.push_back(data);
    }

    void printCache() {
        for (int i = 0; i < cache.size(); i++) {
            cout << cache[i] << " ";
        }
        cout << endl;
    }
};

int main() {
    DataCache cache;

    cache.addData(1);
    cache.addData(2);
    cache.addData(3);

    cache.printCache();

    return 0;
}

#include <iostream>

using namespace std;

class BufferManager {
private:
    int* buffer;
    int front;
    int rear;
    int size;

public:
    BufferManager(int bufferSize) {
        buffer = new int[bufferSize];
        front = 0;
        rear = 0;
        size = bufferSize;
    }

    ~BufferManager() {
        delete[] buffer;
    }

    bool isEmpty() {
        return front == rear;
    }

    bool isFull() {
        return (rear + 1) % size == front;
    }

    void push(int data) {
        if (isFull()) {
            cout << "Buffer is full!" << endl;
        } else {
            buffer[rear] = data;
            rear = (rear + 1) % size;
        }
    }

    void pop() {
        if (isEmpty()) {
            cout << "Buffer is empty!" << endl;
        } else {
            front = (front + 1) % size;
        }
    }

    void printBuffer() {
        if (isEmpty()) {
            cout << "Buffer is empty!" << endl;
        } else {
            int index = front;
            while (index != rear) {
                cout << buffer[index] << " ";
                index = (index + 1) % size;
            }
            cout << endl;
        }
    }
};

int main() {
    BufferManager buffer(5);

    buffer.push(1);
    buffer.push(2);
    buffer.push(3);
    buffer.push(4);
    buffer.push(5);

    buffer.printBuffer();

    buffer.pop();
    buffer.pop();

    buffer.printBuffer();

    return 0;
}