🚀 go-pugleaf

In article <1990Oct17....@ultra.com> ha...@ultra.com (John Hayes) writes:
>I used to use the UCSD Pascal system as a developmet system on apple ]['s
>some time ago.  The strangest error message I ever encountered was 
>
>"return from uncalled subroutine"
>
>During execution.  This usually occurred in an assembler section...

It didn't always, though.  I ran into that particular message on some program
or another that I had written and spent a good while trying to figure out what
had happened.  I *think* that the actual message was 'Exit from uncalled
subroutine', and I finally tracked the problem down.

UCSD Pascal had an 'exit' statement that was used as 'exit (procname)'.  And
of course, what had happened was that I had copied the code for a procedure,
renamed it and made a few other changes, and then run the program, but I had
forgotten to change the name in the exit statement.  Thus, when I called
procedure 'a' (say), it tried to exit from procedure 'b'.  Thus, the error 
message meant exactly what it said.

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                      Mat Davis (dav...@vtopus.cs.vt.edu)
                 Department of Computer Science, Virginia Tech
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