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Re: Undefining a variable a pointer points to [message #39321]

Sun, 16 May 2004 23:10

marc schellens[1]
Messages: 183
Registered: January 2000

Senior Member

Benjamin Hornberger wrote:
> Hi all,
>
> is there a way to undefine the variable a pointer points to? E.g., if I
> initialize a pointer by
>
> p = ptr_new(/allocate_heap)
>
> p is a valid pointer, but *p is undefined. If I now do
>
> *p = 10
>
> is there a way to undefine it again afterwards, i.e. get back to the
> status right after the call to ptr_new(/allocate_heap)?
>
> Thanks for your help,
> Benjamin

dummy=temporary(*p) would also work.

HDH,
marc

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[Message index]

		Re: Undefining a variable a pointer points to By: marc schellens[1] on Sun, 16 May 2004 23:10
		Re: Undefining a variable a pointer points to By: David Fanning on Fri, 14 May 2004 14:30

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