Re: shell command arguments limitation?

[Eric Norum <eric@norum.ca>]

The ioc shell doesn't call its registered functions with individual arguments so the limit you're describing does not exist.  iocsh handler functions are called with a single argument -- a pointer to an array of argument unions.  The only limit that I can see is the amount of memory available to hold this array.


On Apr 20, 2011, at 9:53 AM, Hu, Yong wrote:

> I guess the limitation is determined by the C++/C language. As I recalled from some textbooks, 256 Max. arguments in one function call in C++ and 128 in C. 
> 
> But I guess nobody writes a function with tens of arguments. I did write a configuration function as ioc shell with 9 arguments which works well.
> 
> Yong 
> 
>> -----Original Message-----
>> From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-
>> bounces@aps.anl.gov] On Behalf Of Jim Chen
>> Sent: Wednesday, April 20, 2011 12:36 PM
>> To: tech-talk@aps.anl.gov
>> Subject: shell command arguments limitation?
>> 
>> Hello,
>> 
>> I remember there used to be a limitation for the number of arguments in
>> a single ioc shell command (configuration for example). What exact
>> number is it since R3.14.11 release or is there a one please?
>> 
>> Thanks,
>> 
>> Jim
>> Hytec Electronics Ltd.
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>> 
>> 
> 
> 

-- 
Eric Norum
eric@norum.ca