array inside vector

[sasha]

Is it possible to declare array inside vector?

class Test{
private:
vector < char[12] > node;

public:
}


Thank you.

 

[Jerry Coffin]

(e-mail address removed)>, (e-mail address removed)
says...

Is it possible to declare array inside vector?

class Test{
private:
vector < char[12] > node;

public:
}

No -- to be used as an element in a vector, the type must be assignable
and copyable, and an array isn't either one.

 

[peter koch]

Is it possible to declare array inside vector?

class Test{
  private:
    vector < char[12] > node;

  public:

}

Thank you.

No - because the array is a bastard C/C++ type. It decays to easily.
What you can do is use boost::array or declare your own array:

struct char12array
{
char data[12];
};

Obviously, the boost version is by far the best - giving you a "real"
array, without having to augment the char12array struct.

/Peter

 

[sasha]

Wow, I never heard of boost array before, what source would you
recommend for libraries? I googled it and it seems like www.boost.org
is the place to get it. So how would I declare the boost array inside
a vector. Does that look ok?

vector < boost::array < char,12 > > node;

I use mingw compiler, I guess boost templates should work with it?

 

[peter koch]

Wow, I never heard of boost array before, what source would you
recommend for libraries?  I googled it and it seems likewww.boost.org
is the place to get it.  So how would I declare the boost array inside
a vector.  Does that look ok?

vector < boost::array < char,12 > > node;

Yes - that looks perfect.

I use mingw compiler, I guess boost templates should work with it?

I don't know if the mingw compiler works with boost, but I can't
imagine boost::array not working. For the final test you have to check
the boost-documentation.
And yes - www.boost.org is the place to get the stuff.

/Peter