Re: [Help-glpk] default column bounds

[glpk xypron]

> The 4.45 documentation states that a new column call
> 'glp_add_cols' for the i-th column effectively sets:
> 
>   glp_set_col_bnds(lp, i, GLP_FX, 0.0, 0.0);
> 
> If I am not mistaken, that behavior used to be (around
> three years ago) one of non-negativity, namely:
> 
>   glp_set_col_bnds(lp, i, GLP_LO, 0.0, 0.0);
> 

Hello Robbie,

the function specification has not changed in the last 3 years:

glpk-4.24/doc/glpk.pdf released 21st Nov, 2007:

int glp_add_cols(glp_prob *lp, int ncs);
...
Being added each new column is initially fixed at zero and has empty list of
the constraint coefficients.

Best regards

Xypron

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