Any of you guys ever hear of a COMEFROM?  It's like the opposite of a GOTO!

<G>

At 10:30 AM 12/24/98 +1100, you wrote:
>Paul B. Webster VK2BZC wrote:
>> James Cameron wrote:
>> > But I think it is not as evil as setjmp() and longjmp().
>>   Is that a sort of takeajmp() ?
>
>setjmp() marks a point in your code.
>
>longjmp() can be used anywhere in the code to unwind the stack, all
>stack allocated variables, and resume execution after the setjmp().
>
>It is sort of a steroidal or global goto; can be used in any part of a
>program, not just within a function.
>
>I imagine it would be difficult to implement on PIC ... requires ability
>to unwind (pop) the stack.  Means the compiler would have had to
>implement the stack as a set of file registers.
>
>--
>James Cameron                                      (cameron@stl.dec.com)
>
>OpenVMS, Linux, Firewalls, Software Engineering, CGI, HTTP, X, C, FORTH,
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>Remote Area Power, Greek Scholar, Tenor Vocalist, Church Sound, Husband.
>
>"Specialisation is for insects." -- Robert Heinlein.
>
==================================================================
  Andy Kunz - Montana Design - http://www.users.fast.net/~montana
==================================================================