Re: 'const' usage

"Alf P. Steinbach" <>
Wed, 21 May 2008 02:46:13 +0200
* lost_in_space:

"Vladimir Grigoriev" <> wrote in message

"Giovanni Dicanio" <> wrote in message

It is not weired.
In fact, you can have a const method that returns a non-const object,

SomeObject * SomeFactory::BuildSomeObject() const
   return new SomeObject(...);

The caller can modify SomeObject instance (returned by pointer); but the
BuildSomeObject method (of class SomeFactory) does not modify the
internal status of SomeFactory instance.

It is more weired if three const qualifiers are present. :)

const SomeObject * const SomeFactory::BuildSomeObject() const;

 > I understand what the first and third are doing; what effect does the second
 > have?

None, because rvalues of built-in types are effectively const already.

Cheers, & hth.,

- Alf

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