CODEWITHSUNDEEP
c++fstreamc++98
JohnKraz
JohnKraz

Reputation: 129

Regarding ifstream: error ‘std::ios_base::ios_base(const std::ios_base&)’ is private

I am getting the error in the title, when I try to do the following.

class Test
{
private:
    std::ifstream File;


public:
    Test();

};

Test::Test() {}

I know there are many threads on stack about this issue. I know that I can resolve my issue by something as simple as

std::ifstream *File;

The reason I have posted this question is because my instructor has told me that I should be able to do this without modifying the first code block I posted. I've researched this, and I haven't found anything that suggests I can. Any ideas?

As requested.

class Test
{
private:
    std::ifstream File;


public:
    Test();
};

Test::Test() {}

int main()
{
Test test = Test();
return 0;
}

That is an example of something I can't compile.

Upvotes: 0

Views: 403

Answers (1)

R Sahu
R Sahu

Reputation: 206577

The line

Test test = Test();

is a problem since std::ifstream does not have a copy constructor or copy assignment operator. Use:

Test test;

If you have a C++11 compiler, you can also use:

Test test{};

Upvotes: 1

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