static void Main(string[] args)
{
glp_graph g = null;
int ret;
int exitCode = 1;
String filename;
SWIGTYPE_p_double sol;
if (1 != args.Length)
{
Console.WriteLine("Usage: cli Relax4 model.min");
Environment.Exit(1);
}
GLPK.glp_cli_set_numeric_locale("C");
filename = args [0];
sol = GLPK.new_doubleArray(1);
try {
g = GLPK.glp_create_graph(
GLPK.GLP_CLI_V_SIZE,
GLPK.GLP_CLI_A_SIZE);
do
{
GLPK.glp_cli_set_numeric_locale("C");
ret = GLPK.glp_read_mincost(
g,
GLPK.GLP_CLI_V_RHS,
GLPK.GLP_CLI_A_LOW,
GLPK.GLP_CLI_A_CAP,
GLPK.GLP_CLI_A_COST,
filename);
if (ret != 0)
{
break;
}
ret = GLPK.glp_mincost_relax4(
g,
GLPK.GLP_CLI_V_RHS,
GLPK.GLP_CLI_A_LOW,
GLPK.GLP_CLI_A_CAP,
GLPK.GLP_CLI_A_COST,
0,
sol,
GLPK.GLP_CLI_A_X,
GLPK.GLP_CLI_A_RC);
Console.WriteLine(
"ret = {0}; sol = {1}", ret,
GLPK.doubleArray_getitem(sol, 0));
if (ret != 0)
{
break;
}
for (int i = 1; i < g.nv; i++)
{
glp_vertex v = GLPK.glp_cli_vertex_get(g, i);
for (glp_arc a = v.out_; a != null;
a = a.t_next)
{
glp_vertex w = a.head;
Console.WriteLine(
"arc {0}->{1}: x = {2}; rc = {3}",
v.i, w.i,
GLPK.glp_cli_arc_get_data(a).x,
GLPK.glp_cli_arc_get_data(a).rc);
}
}
// signal success
exitCode = 0;
} while (false);
} catch (GlpkException e) {
// print error message
Console.Error.WriteLine(e.Message);
// signal failure
GLPK.delete_doubleArray(sol);
Environment.Exit(1);
} finally {
if (g != null)
{
GLPK.glp_delete_graph(g);
}
}
GLPK.delete_doubleArray(sol);
Environment.Exit(exitCode);
}
