from datetime import datetime

from your_app import db

​

class Manufacturer(db.Model):

    __tablename__ = 'manufacturers'

​

    id = db.Column(db.Integer, primary_key=True)

    name = db.Column(db.String(100), nullable=False)

    country = db.Column(db.String(100), nullable=False)

    continent = db.Column(db.String(100), nullable=False)

    established_year = db.Column(db.Integer, nullable=False)

    created_at = db.Column(db.DateTime, default=datetime.utcnow)

    updated_at = db.Column(db.DateTime, onupdate=datetime.utcnow)

​

    def __repr__(self):

        return f'<Manufacturer {self.name}>'

​

/* These are preprocessor directives in C++. They might sound like quite a mouthful, 

   but they're simply instructions that tell the compiler to include libraries.

   These libraries contain a set of pre-written functions and tools, making it easier 

   to perform various tasks without reinventing the wheel. */

​

// Library for standard input/output operations

#include <iostream>

// Library for general utilities

#include <cstdlib>

​

// It is preprocessor directives that allow access to these sets of functions

​

int main() {

    std::cout << "Hello, World!\n"; // cout is imported from iostream

    // Allocate memory for an array of 10 integers using new

    int* var = new int[10]; // new is used in place of malloc in C++

​

    // Check if memory allocation was successful

    if (var == nullptr) {

        std::cout << "Memory allocation failed!\n";

        return 1;  // Exit the program if memory allocation fails

    }

​

    // Assign values to the allocated memory

    for (int i = 0; i < 10; i++) {

        var[i] = i;

    }

​

    // Print values stored in allocated memory

    for (int i = 0; i < 10; i++) {

        std::cout << var[i] << " ";

    }

    std::cout << "\n"; // Newline for cleaner output

​

    // Free the allocated memory to prevent memory leaks

    delete[] var;  // delete[] is used to free memory allocated with new

​

    return 0; // Indicate successful program completion

}

​