[Cmpl] Problem when sets contain numeric values as strings and 'long line name' situation

[Mike Steglich]

Hi Maria,

Thank you for the information that the line name issue is due to an MPS export and not a bug. 

I created a bug fix of the other problem you mentioned. You will receive a link to my dropbox with an fixed beta version until the end of the day. It would be great if you could take a look at it. 

A think (or hope) that is the last necessary fix before I will release Cmpl v1.11 in the next couple of days.

Thanks,

Mike



 
> Am 25.05.2016 um 14:30 schrieb Maria Giatsoglou <maria.giatsoglou at gmail.com>:
> 
> Hi Mike, 
> 
> Thank you for the prompt reply.
> I will apply a workaround for the string values containing only numbers, but I will be looking forward to a new release that will solve this issue since currently it is rather cumbersome to work with such values.  
> 
> Indeed, the second problem I described is due to an MPS export. After removing this configuration the issue disappeared.
> 
> All the best,
> Maria
> 
> 
> On Tue, May 24, 2016 at 7:17 PM, Mike Steglich <mike.steglich at th-wildau.de <mailto:mike.steglich at th-wildau.de>> wrote:
> Hi Maria,
> 
> Sorry … there actually a simple bug. If in a CmplData file an entry enclosed in double quotes only contains numbers or looks like a float then it is interpreted as an integer or a real number. I will change it as soon as possible. 
> 
> The maximum length of a line name is 100.  Only for the export to a MPS file it is restricted to nine characters. Could you send your jCmpl programme (directly to me)?
> 
> Thanks,
> 
> Mike
> 
>> Am 24.05.2016 um 17:45 schrieb Maria Giatsoglou <maria.giatsoglou at gmail.com <mailto:maria.giatsoglou at gmail.com>>:
>> 
>> Hi Mike, 
>> 
>> Please find attached the model I use and the cdat file. 
>> I noticed that the first error ("Implicit type conversion from string to integer is not possible") occurs both when using the Coliop environment and the Cmpl Java API. 
>> If I change the numeric ids into string ones e.g. by appending a letter before each id in the 'items' set, then the model can be solved without problems in Coliop. 
>> By using jCmpl, however, I get the "Line name 'fm[1220],[1],[2]' is too long" error.
>> The attached cdat file is the one produced by jCmpl, which is the main way I use Cmpl (I use Coliop only for testing).
>> 
>> I am looking forward for your response.
>> 
>> Thank you once more for your help!
>> 
>> Maria
>> 
>> On Mon, May 23, 2016 at 10:31 PM, Mike Steglich <mike.steglich at th-wildau.de <mailto:mike.steglich at th-wildau.de>> wrote:
>> Hello Maria,
>> 
>> can you send your model directly to me?
>> 
>> Thanks,
>> 
>> Mike
>> 
>> Am 23.05.2016 um 11:36 schrieb Maria Giatsoglou <maria.giatsoglou at gmail.com <mailto:maria.giatsoglou at gmail.com>>:
>> 
>>> Hi Mike, 
>>> 
>>> I have encountered the following situation with CMPL:
>>> 
>>> In my model I am importing the following parameters set from a cdat file 
>>> 
>>> %M set[3] < 
>>> "7" "2" "10"
>>> "1" "12" "7" 
>>> >
>>> 
>>> Then, I use this set in the following expression 
>>> 
>>> flag := 0;
>>> it {[i,j,k] in M, i != "off", j != "off", k != "off":
>>>          flag:= 1; break;
>>> }
>>> 
>>> By doing this I get the following error: "Implicit type conversion from string to integer is not possible".
>>> I thought that by using double quotes, the values of set M would be interpreted and treated as strings in CMPL (as was my intention), but I found out that using 
>>>  
>>> %M set[3] < 
>>> "7" "2" "10"
>>> "1" "12" "7" 
>>> >
>>> 
>>> or 
>>> 
>>> %M set[3] < 
>>> 7 2 10
>>> 1 12 7 
>>> >
>>> 
>>> makes no difference.
>>> 
>>> Is there a way to circumvent this issue?
>>> 
>>> 
>>> Additionally, when I try to solve my model I get the following error message:
>>> "Line name 'fm[3835],[1],[2]' is too long"
>>> Can I somehow change the maximum line name length in CMPL?
>>> 
>>> Thanks!
>>> 
>>> My warmest regards,
>>> Maria Giatsoglou 
>>> _______________________________________________
>>> Cmpl mailing list
>>> Cmpl at list.coin-or.org <mailto:Cmpl at list.coin-or.org>
>>> http://list.coin-or.org/mailman/listinfo/cmpl <http://list.coin-or.org/mailman/listinfo/cmpl>
>> <TestModel.cdat><TestModel.cmpl>
> 
> 
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