[Help-glpk] lpx_integer() - how to use

[Michael Jastrzebski]

I am reading in the docs about this function:

"On entry to this routine the problem object must
contain an optimal basic solution for LP relaxation,
which can be obtained by means of the simplex-based
solver..."

I am not sure I understand it. OK, I first solve the
simplex problem asuming the variables are real and
then pass the solution through the LPX pointer to
lpx_integer. I was wondering why there is this
intermediate step why the function could not do it for
me in one sweep. Unless I misunderstood something.

Is there any example anywhere with the C code solving
a simple MIP problem?

Thanks,
Michael Jastrzebski
Oakland, CA