Re: Understanding CNVRTTMP.RPGLE -- can anybody explain some things that have me scratching my head?

I think it is doing exactly what you said James.

The RPG is just a wrapper for calling routines in C/C++ so string input is in null terminated strings - output too I guess - although why they wouldn't have code options(*string) on parm for the output is anybody's guess.


On 2014-05-06, at 6:00 PM, James H. H. Lampert <jamesl@xxxxxxxxxxxxxxxxx> wrote:

The source for the CNVRTTMP sample web service provided with IWS,

/QIBM/ProdData/OS/WebServices/V1/server/samples/ConvertTemp/CNVRTTMP.RPGLE

Given the parameters

d ConvertTemp pi
d tempIn 10 const
d tempOut 10

why does it do this?

value = %STR(%ADDR(tempIn));
tempI=%DEC(value:7:2);

and this?

%STR(%ADDR(tempOut):10)=tempOut;

As I recall, %STR() is used to convert C-style null-terminated strings to RPG strings.

So what's it doing here?

--
JHHL
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