On 31/03/2017 2:54 AM, David W Noon wrote:
On Thu, 30 Mar 2017 13:01:26 -0500, Paul Gilmartin
([email protected]) wrote about
"Data/hiperspaces (was: ... 4G bar?)" (in
<[email protected]>):
[snip]
... HLL programs cannot use [data/]hiperspaces directly.
How can it tell? Is there a flag in a control block indicating "HLL"
the supervisor checks and bars use of data/hiperspaces?
The only API for manipulating dataspaces and hiperspaces is the
assembler macro DSPSERV and such. No compiler languages have such a
construct. Instead, compiler languages have to use IBM's windowing
services library, which is written in assembler.
I bet it's written in PL/X which by your definition is a HLL.
So, any HLL has only indirect access to dataspaces and hiperspaces.
What's the definition of a "HLL"?
Anything that isn't assembler.
Some people think C is a LLL, but that's just wishful thinking.
I mostly use C++ and when I have to use C it certainly does feel
low-level. There's no string type, only char arrays. There are no
standard container or algorithm libraries. Resource management is
manual. It's not object oriented. Pointers everywhere!
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