Tenta c++

#ifndef TIME_H
#define TIME_H
/*----------------------------------------------------------------------------*/
#include <ostream>, <sstream>, <string>, <vector>, <array>, <iostream>, <iomanip>, <fstream>, <cassert>, <math.h>
//I cc #include "något.h"
/*----------------------------------------------------------------------------*/
//Bra nyckelord
virtual, public, private, protected, override, const, *, std::, explicit, setfill("-"), setprecistion(2), fixed, setw(4);
//Ex
class Capacitor : public Component
/*----------------------------------------------------------------------------*/
Sorted_List(std::initializer_list<int> li);
std::string to_string() const;
operator std::string() const;
Time operator+(int more_sec);
Time operator-(int rhs);
Time operator++(int);
Time operator--(int);
Time& operator++();
Time& operator--();
bool operator==(Time const &rhs) const;
bool operator<(Time const &rhs) const;
bool operator>(Time const &rhs) const;
bool operator!=(Time const &rhs) const;
bool operator<=(Time const &rhs) const;
bool operator>=(Time const &rhs) const;
Sorted_List& operator=(Sorted_List const & rhs); //Kopiering
Sorted_List& operator=(Sorted_List && rhs); //Flytt
/*----------------------------------------------------------------------------*/
//Iterator klassen ska ligga i klassen för iteratorn
Iterator begin() const;
Iterator end() const;
Iterator operator++(int);
Iterator operator--(int);
Iterator& operator++();
Iterator& operator--();
int operator*();
bool operator!=(Iterator const &rhs) const;
//osv beroende på vilka man behöver
/*----------------------------------------------------------------------------*/
//Ligger utanför men behöver getters
std::ostream& operator<<(std::ostream &lhs, Time const &rhs);
std::istream& operator>>(std::istream &lhs, Time &rhs);
/*----------------------------------------------------------------------------*/
throw (std::domain_error){ "Month " + std::to_string(month) + " doesn't exist!" };
/*----------------------------------------------------------------------------*/
static constexpr const std::array<int, 13> days{ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; //days.at(index)
/*----------------------------------------------------------------------------*/
//Skriv ut ett datum då funktionen är friend med ostream
friend std::ostream& operator<<(std::ostream& os, Date rhs);
std::ostream& operator<<(std::ostream& lhs, Date rhs)
{
	lhs << std::setfill('0')
		<< std::setw(4) << rhs.m_year << "-"
		<< std::setw(2) << rhs.m_month << "-"
		<< std::setw(2) << rhs.m_day
		<< std::setfill(' ');
	return lhs;
}
/*----------------------------------------------------------------------------*/
//Kompilatorn ska förbjudas att automatiskt konvertera enskilda heltal till en färg?
explicit Color(int rgb);
/*----------------------------------------------------------------------------*/
cin.ignore(1000."\n")
/*----------------------------------------------------------------------------*/
//Ex for infil
std::ifstream ifs{ "STUDENTS.TXT" };
	if (!ifs) {
		std::cerr << "Couldn't open input file\n";
		return 1;
	}
	else
	{
		std::string line;
		while (std::getline(ifs, line)) //Kan även göras med cin
		{
			std::stringstream sst{ line };
			std::cout << sst.str() << "\n";
		}
	}
	ifs.close();
/*----------------------------------------------------------------------------*/
	#endif