c++ - 'CustomVector<int,15>::size': cannot access private member declared in class 'CustomVector<int,15>'

Question

I am so confused right now...

Here is the code that I will be talking about:

main.cpp:

#include "CustomVector.h"
#include <iostream>

int main() {

    CustomVector<int, 15> hello{};

    std::cout << hello.size() << '
';

    return 0;
}

CustomVector.h:

#pragma once

template<typename T, int S>
class CustomVector {

private:
    T arr[S];
    int size;

public:
    CustomVector() : arr{}, size{ S } {}

    // Methods
    int size() const {
        return size;
    }
};

As you can see I am trying to use the size() method that I have in my class definition, which there shouldn't be a problem with, right..? But when I try to use it in main.cpp and try to print it out to the console, it is giving me the compiler error which my question title has. Why could this be, this has never happened to me before. I would think there is some sort of "redefinition" somehow, but how could that be, there couldn't be a redefinition if it is in my own user-defined class?

question from:https://stackoverflow.com/questions/65893684/customvectorint-15size-cannot-access-private-member-declared-in-class-cu

Answer 1

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