18 Feb
2015
18 Feb
'15
5:52 p.m.
From: Eric Smith
Sent: Wednesday, February 18, 2015 12:36 PM
On Wed, Feb 18, 2015 at 9:55 AM, Sean Conner <spc
at conman.org> wrote:
> It was thus said that the Great Chuck Guzis once
stated:
>> Example: Consider a section of a program with
4 consecutive paragraphs,
>> named PARA-1 through PARA-4. One can say in the same program:
>> PERFORM PARA-1 23 TIMES.
> Um ...
> for i = 1 , 23 do
> para_1()
> para_2()
> para_3()
> para_4()
> end
No. In the COBOL example PARA-1 though PARA-4 are
consecutive
paragraphs, not functions that are terminated by a return (explicit or
implicit). If you want to think of it as a function, the paragraphs
are all part of a single function, but both the entry and return
points of the function are variable, specified by the caller!
Actually, both you and I missed this one, Eric.
It really ought to read
for i = 1 , 23 do
para_1()
end
because the PERFORM verb only executes multiple (consecutive) paragraphs when
there is an explicit THROUGH clause.
Rich
Rich Alderson
Vintage Computing Sr. Systems Engineer
Living Computer Museum
2245 1st Avenue S
Seattle, WA 98134
mailto:RichA at LivingComputerMuseum.org
http://www.LivingComputerMuseum.org/