[Info-vax] CRTL and RMS vs SSIO

Arne Vajhøj arne at vajhoej.dk
Fri Oct 8 21:18:53 EDT 2021


On 10/8/2021 9:09 PM, Dave Froble wrote:
> On 10/8/2021 8:04 PM, Greg Tinkler wrote:
>> So the main issue is file IO, so change CRTL to use RMS.
> 
> Let me ask this as a question, because I really don't know.
> 
> Doesn't C already use RMS for file I/O ?
> 
> It has been my impression that all the VMS languages use RMS for file 
> I/O.  But I don't get out much.

It has previously been claimed that:

other languages use a very thin layer on top of SYS$GET and SYS$PUT

C use a much thicker layer on top of SYS$READ and SYS$WRITE

I don't know if it is true or not.

Arne





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