[Bug-glpk] indexed sets in GNU MathProg

[Giles]

Hi,

While playing around with glpsol, I noticed that
the following set definition generates an assertion failure.

set S{i in 1..20} dimen 1 := 
  if i < 3 then i..i+3 
  else S[i-1] symdiff (i..i+1 union S[i-2]);

(Without the 'dimen 1' bit, it complains that the
else clause has dimension 0.)


Giles Thompson