Re: RPG vs. C

[Hans Boldt <boldt@xxxxxxxxxx>]

david wrote:
>IMHO, it's too hard to write APPLICATIONS in C... you have to do far too
>much work to accomplish the same thing you can do in a few lines of code in
>RPG.  Also, if my memory serves (Jon & Hans can correct me if necessary)
>the RPG compiler generates more efficent code than the C compiler.

Comparing performance of C vs RPG is like comparing apples and oranges
since both are used for different classes of programming.  RPG is clearly
better suited to applications and C better for systems programming.

I don't know for a fact, but I'm sure that on ILE, C probably performs
better than RPG for a compute-bound application.  There are several reasons
for this, including the fact that RPG semantics require that we can't take
advantage of the more aggressive back-end optimizations.  But then, most RPG
apps are I/O bound.  As you point out, when writing typical business apps,
programmers are more productive using RPG.

Cheers!  Hans



Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com
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