Why doesn't my question meet quality standards? [duplicate]

Question

I was trying to post a question to Stack Overflow but I can not because it

doesn't meet quality standards

How can I know what need to be fixed in my question so it become "meeting quality standards"? Adding question below

In c++ I can declare field as regular variable of some type, instatiate it in constructor, and use it later:

private:  Foo field;
...

A::A() {
    field = FieldImpl();
}
....
method(field);

Or alternatively i can use pointer:

private:  Foo* field;
...

A::A() {
    field = new FieldImpl();
}

A::~A() {
    delete field;
}

...
method(*field);

What is prons and cons of declaring field as pointer? When declaring field how to decide if I should use pointer or regular variable?

Answer 1

In c++ I can declare a field as a regular variable of some type, instantiate it in the constructor, and use it later:

private:    Foo field;
...

A::A() {
    field = FieldImpl();
}
....
method(field);

Or alternatively I can use a pointer:

private:    Foo* field;
...

A::A() {
    field = new FieldImpl();
}

A::~A() {
    delete field;
}

...
method(*field);

When declaring a field, how do I decide if I should use a pointer or a regular variable?