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

[Maria Giatsoglou]

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>
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>:
>
> 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> 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>:
>>
>> 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
>> http://list.coin-or.org/mailman/listinfo/cmpl
>>
>>
> <TestModel.cdat><TestModel.cmpl>
>
>
>
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