[Help-glpk] MathProg and Ampl

[Julien THENIE]

Hello all,
I'm trying to translate an Ampl model file in Mathprog, and don't know
how to
write the definition of the set "setC" that is an union of indexed sets.
The ampl formulation is below:
##
set setA;   
set setB{setA}; 
set setC := union {a in setA} setB[a];
##
glpk returns "invalid use of reserved keyword union"...
Thanks for help.

Julien Thénié.
University of Geneva



>  I'm quite new on C/C++ programming..
> 'just trying to make a test C++ program working with glpk.
> 
> Yes, I read the doc and searched the mailing list..
> 
> I just added this two lines:
>   LPX *lp;
>   lp = lpx_create_prob();
> 
> If I don't place any header I get the error:
> 
> error: 'LPX' was not declared in this scope
> error: 'lp' was not declared in this scope
> error: 'lpx_create_prob' was not declared in this scope
> 
> But even if I place at the top of the header:
> 
> extern "C" {
>    #include "glpk.h"
> }
> 
> I still got the error:
>  undefined reference to `glp_lpx_create_prob'
> 
> Where am I wrong?
> Using kdevelop on Linux
> 
> (but that's the same just using g++ command line, while with gcc is
> working..)
> 
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