[Info-vax] date comparison format from a program

[gérard Calliet]

Le 20/05/2019 à 16:53, VAXman- at SendSpamHere.ORG a écrit :
> In article <gkfsr0Fs1fbU1 at mid.individual.net>, =?UTF-8?Q?g=c3=a9rard_Calliet?= <gerard.calliet at pia-sofer.fr> writes:
>> Le 20/05/2019 à 16:19, VAXman- at SendSpamHere.ORG a écrit :
>>> In article <gkfoamFr2t2U1 at mid.individual.net>, =?UTF-8?Q?g=c3=a9rard_Calliet?= <gerard.calliet at pia-sofer.fr> writes:
>>>> Hello,
>>>>
>>>> Is there a way to do from a compiled program (in C, for example)
>>>> something as simple as done by the lexical f$cvtime with "comparison"
>>>> parameter in DCL to get date strings which can easyly sorted? Pure VMS
>>>> realm whished.
>>>>
>>>> (I have to write program examples in C with VMS dates format and
>>>> associated routines and compare with RtlC usages).
>>>>
>>>> Gérard Calliet
>>>
>>> SYS$NUMTIM
>>>
>> Thanks. Same question for f$integer, f$string (the simplest solution)
> 
> You're looking for the DCL equivalent of expression evaluating and returning
> an integer or string?
> 
My question was why using a f$integer, f$string, f$cvtime is so simple 
in DCL and why I don't find at the same time something similar and 
simple from compiled programs.

"At the same time" means VMS 5.5-h4 . The demonstration I have to do 
must be for  VAX/VMS and C which are a little bit old.

(And no, impossible to do any migration, the deal is maintening 
somewhere knowledge on a platform where not any change is possible; VMS 
5.5-h4 has to be there for 10 years at least from now)

... And so also thanks to Stephen Hoffman also, good references, I'll 
use them on my training just to help attendees keep full of  hope, but 
not for the demonstration itself.

Thanks,

Gérard Calliet