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Anna
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 Posted: Sat Jan 29, 2005 5:39 am Post subject: Private const function |
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What is one good reason to declare a private function const (other than
the reason that it doesn't modify any class member)?
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adeht
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| Posted: Sat Jan 29, 2005 9:33 am Post subject: Re: Private const function |
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Anna wrote:
| Quote: | What is one good reason to declare a private function const (other than
the reason that it doesn't modify any class member)?
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Perhaps the fact that a public/protected member function that is
declared const won't be able to call a member function (for 'this') that
is declared non-const.
It also makes it easier to understand code.
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Ivan Vecerina
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| Posted: Sat Jan 29, 2005 9:34 am Post subject: Re: Private const function |
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"Anna" <swetha.karthik (AT) gmail (DOT) com> wrote
| Quote: | What is one good reason to declare a private function const (other than
the reason that it doesn't modify any class member)?
|
Allowing it to be called from other (public) const member functions.
Consider:
class C
{
private:
int* getInternalPointer() const; // the private const member
public:
int get3rdValue() const { return getInternalPointer[2]; }
};
If the private member were not const, get3rdValue() would not compile.
hth -Ivan
--
http://ivan.vecerina.com/contact/?subject=NG_POST <- email contact form
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Antoun Kanawati
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| Posted: Sat Jan 29, 2005 9:35 am Post subject: Re: Private const function |
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Anna wrote:
| Quote: | What is one good reason to declare a private function const (other than
the reason that it doesn't modify any class member)?
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So that you can call it from another const member function, which could
be public.
--
A. Kanawati
[email]NO.antounk.SPAM (AT) comcast (DOT) net[/email]
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