Re: How to halt a running program without losing data?
robin wrote:
PL/I provides the ability to do this.
You can interrupt a program at any time, and can then do anything you
want, including printing the values of variables (useful if you want
to inspect the salient value of some iterative process to see whether
it is converging, etc), or reading in the values of any variables, etc.
You write what you want to do in an ON-unit (effectively
a procedure) that is entered when you interrupt from the keyboard.
Gee, now if we could actually find a PL/1 compiler ...
.
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