C++: Issue overloading I/O operators - c++

Question

I'm currently finding it impossible to fix an occurrence of infinite recursion in my code.
I have the following header that defines the Proces class:
#pragma once
#include <iostream>
class Proces {
std::string name;
int maxWaitTime;
int timeToFinish;
int timeWaited;
int timeProcessed;
public:
Proces(std::string n, int mwt = 1, int ttf = 1) :name(n), maxWaitTime(mwt), timeToFinish(ttf), timeWaited(0), timeProcessed(0) {}
bool process(int a = 1) { timeProcessed += a; return isComplete(); }
bool isComplete() { return timeProcessed >= timeToFinish; }
bool wait(int a = 1) { timeWaited += a;return maxWaitReached(); }
bool maxWaitReached() { return maxWaitTime <= timeWaited; }
friend bool operator<(const Proces& a, const Proces& b);
friend bool operator>(const Proces& a, const Proces& b);
friend std::ostream &operator<<(std::ostream &output, const Proces& a);
friend std::istream &operator>>(std::istream &input, const Proces& a);
};
Then, for the implementation of the operators, I have:
#include "proces.h"
bool operator<(const Proces & a, const Proces & b)
{
if (a.timeWaited != b.timeWaited)
return a.timeWaited < b.timeWaited;
else
return a.maxWaitTime < b.maxWaitTime;
}
bool operator>(const Proces & a, const Proces & b)
{
return ! (a < b);
}
std::ostream & operator<<(std::ostream & output, const Proces & a)
{
output << a.naziv << " MWT:" << a.maxWaitTime << " TTC:" << a.timeToFinish << " WT:" << a.timeWaited << " TP:" << a.timeProcessed;
return output;
}
std::istream & operator>>(std::istream & input,Proces & a)
{
input >> a.name >> a.maxWaitTime >> a.timeToFinish;
a.timeWaited = 0;
a.timeProcessed = 0;
return input;
}
This lead to two (as far as I know unrelated) problems:
Use of the output operator lead to said infinite recursion happening
The code itself cannot be compiled without commenting out the implementation
of the input operator as it claims the fields of the class are inaccessible
in spite of being a friend of the class
Severity Code Description Project File Line Suppression State
Error (active) E0265 member "Proces::name" (declared at line 4 of "[project path]\proces.h") is inaccessible aspdz2 [project path]\proces.cpp
Here is the main function (the < and > operators work as intended):
#include "proces.h"
int main() {
Proces a{ "Glorious prces",1,2 };
Proces b{ "Glorious prces2",2,2 };
if (a < b)std::cout << "A is lesser" << std::endl;
else std::cout << "B is lesser" << std::endl;
if (a > b)std::cout << "A is greater" << std::endl;
else std::cout << "B is greater" << std::endl;
b.wait(-1);
if (a < b)std::cout << "A is lesser" << std::endl;
else std::cout << "B is lesser" << std::endl;
//Infinite recursion happens here:
std::cout << b << std::endl;
}

Answer 1

It appears that the reason for the
Severity Code Description Project File Line Suppression State Error (active) E0265 member "Proces::name" (declared at line 4 of "[project path]\proces.h") is inaccessible aspdz2 [project path]\proces.cpp
error was due to the accidental inclusion of the const keyword in the declaration of the >> operator;
The recursion on the other hand was happening because I forgot to#include<string>