[Coin-discuss] mps writer problems

[yax2 at lehigh.edu]

Hi, 

it looks there are several minor problems with CoinMps writer:

1. CoinMps writer does not allow a column upper bound to be greater or equal to
1.0e+10. For example, given a upper bound 2.0e+12, the code in line 2325 of
CoinMpsIO.cpp:

            outputValue[12]='\0';

will truncate 2.0e+12 to be 2.0e+1

I don't have good fix yet. But, the quick and dirty one is to comment this line out.

2.  For a binary variable,  CoinMps writer sets the upper bound as 1.0e+3, which
should be 1.0. The line 2767 of CoinMpsIO.cpp is

            value[0] = largeValue;

maybe should change to

            value[0] = upperValue;

3. To plug memory leak,  it's better to delete rlb and rub that are declared in
line 3186, 3187, 3209, 3210 of CoinMpsIO.cpp



Yan 




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