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Oct 7th, 2008

acessing a vector outside its class

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Hi,

I'm doing a program that has a class called Liga. That class has a vector with 'Equipa's.

Liga has a vector called 'pessoas' which I want to access inside a function in each Equipa, is this possible?

for example:

Liga.h

C++ Syntax (Toggle Plain Text)

...
vector<Pessoa*> pessoas;
...

Equipa.cpp

C++ Syntax (Toggle Plain Text)
...
void Equipa::mostraStaff()
{<blockquote>for(unsigned int i=0;i!=pessoas.size();i++)<blockquote>pessoas[i].mostra();</blockquote></blockquote>}
...
...
void Equipa::mostraStaff()
{<blockquote>for(unsigned int i=0;i!=pessoas.size();i++)<blockquote>pessoas[i].mostra();</blockquote></blockquote>}
...

thanks in advance!

Last edited by onemanclapping; Oct 7th, 2008 at 10:06 pm.

onemanclapping

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Oct 7th, 2008

Re: acessing a vector outside its class

Well you have a few options.
1. You can make pessoas public
2. You can create a function called getPessoas() which will return a pointer to pessoas for that particular Liga object.
3. You can make Equipa a friend of Liga, that way it can access its data members.

stilllearning

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Oct 8th, 2008

Re: acessing a vector outside its class

Click to Expand / Collapse Quote originally posted by stilllearning ...

You can make pessoas public.

that's good! I just need to declare it as public and then include "Liga.h" in "Equipa.h", right?

as for declaring Equipa a friend of Liga, how can I do that?

thanks again!

onemanclapping

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Oct 8th, 2008

Re: acessing a vector outside its class

Yes you can make it public and add the header to Equipa. If you want only Equipa to access the data members of Liga, and not any other class, then you can declare it as a friend:

(Toggle Plain Text)

class Liga {
  friend class Equipa;
....
};

stilllearning

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Re: acessing a vector outside its class

>that's good! I just need to declare it as public
It's rather depressing how you latched on to the worst possible option that stilllearning suggested.

Narue

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Oct 8th, 2008

Re: acessing a vector outside its class

Click to Expand / Collapse Quote originally posted by Narue ...

>that's good! I just need to declare it as public
It's rather depressing how you latched on to the worst possible option that stilllearning suggested.

actually I didn't

I modified my primary algorithm and now I don't need to do that anymore

thanks for all your help, though!

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