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Re: NSXML and invalid UTF8 characters
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Re: NSXML and invalid UTF8 characters

  • Subject: Re: NSXML and invalid UTF8 characters
  • From: Jens Alfke <email@hidden>
  • Date: Fri, 29 Jan 2010 11:40:28 -0800
On Jan 29, 2010, at 11:16 AM, Keith Blount wrote:

> A habit from my fear that the compiler will get even fussier (for instance it is these days fussier about conditional expressions).

The compiler will never complain about that. It's a basic tenet of object-oriented programming that an instance of a subclass is a perfectly valid instance of its superclass(es)*. So it's always valid to assign a subclass pointer to a superclass pointer variable (or return value).

—Jens

* Except that in C++ you can violate this, intentionally, by using private inheritance..._______________________________________________

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 >Re: NSXML and invalid UTF8 characters (From: Keith Blount <email@hidden>)

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