Hi,
I've been working awhile with smart pointers both from OpenSG and Boost,
and found that the latter have a neat feature which is quite useful,
namely that they can be implicitly converted to true/false. They also
have solved this in a robust way. (There are some non-trivialities
implementing this, which is why I assume this isn't available in OpenSG.
I believe Boost returns a ptr-to-member or somesuch to get around this).
This allows for the quite common construct:
if(SmartPtr<T> p = f()){
// do stuff
}
I like this as it is one less line than the usual:
SmartPtr<T> p = f();
if (p != nullfc) {
// do stuff
}
// I don't want p in this scope
And as there are a lot of common usage where a field pointer might be
null (fields not set & dynamic_cast) a nicer way to code this would be
greatly appreciated. (I readily admint toa weakness for 'cute' code though.)
Unless it's been fixed or is planned (or if you've decided for other
resons to not allow this), I could look into it and post some code. I
believe it to be quite simple (copy-paste-edit from boost's smart_ptr :).
Best regards
/Marcus
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