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  2. RPG400-L
  3. October 2023

Re: _Ropen _Rwrite APIs.

Hi Jason,

is using the _R C-API a requirement? If not, there are plenty of other solutions, to read stream files - like SQL:

-> https://www.ibm.com/docs/en/i/7.5?topic=is-ifs-read-ifs-read-binary-ifs-read-utf8-table-functions

The C-APIs are not really complicated - but using SQL feels more natural for me in RPG.

HTH
Daniel

Am 10.10.2023 um 22:12 schrieb VERNON HAMBERG Owner via RPG400-L <rpg400-l@xxxxxxxxxxxxxxxxxx>:

Hi Jason


IBM have information in ILE C/C++ Programmer’s Guide (https://www.ibm.com/docs/en/ssw_ibm_i_75/pdf/sc092712.pdf) and ILE C/C++ Runtime Library Functions (https://www.ibm.com/docs/en/ssw_ibm_i_75/pdf/sc415607.pdf)

There are some examples in the Guide. As to how to use, I'd say think about how RPG works without the cycle. Then figure out which of the library functions correspond to the RPG opcodes. There are some things in C/C++ that we don't have in RPG, as I recall.


Cheers
Vern


On Tue, 10 Oct, 2023 at 2:35 PM, Jason Olson <josys36@xxxxxxxxx> wrote:


To: rpg programming on ibm i

Years ago I put together a system that would read entries from a
journal, and then write to a database table. This was done using the _R
C APIs. Back then I either had a sample program I worked from, or I had
a site that showed how to use those APIs. I've been trying to find
something that shows how to use those, but all I can seem to find is a
copybook from Scott's site. Does anyone have any resources on these APIs?


--
Jason E. Olson
IBM i / Python Engineer/Developer
josys36@xxxxxxxxx<mailto:josys36@xxxxxxxxx>
480.223.2952

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