/**
* Reads data from file.
*
* @param fname file name
*/
private void read_data(String fname)
{
System.IO.StreamReader fr = null;
String comment;
int i, j;
try {
fr = new System.IO.StreamReader(fname);
} catch (Exception ex) {
GLPK.glp_cli_error(ex.Message);
}
Console.WriteLine("Reading LOP instance data from '"
+ fname
+ "'...");
comment = fr.ReadLine().Trim();
Console.WriteLine(comment);
n = nextInt(fr);
if (n < 1)
{
Console.WriteLine("invalid number of nodes");
Environment.Exit(1);
}
if (n > N_MAX)
{
Console.WriteLine("too many nodes");
Environment.Exit(1);
}
Console.WriteLine("Digraph has " + n + " nodes");
w = new int[1 + n, 1 + n];
for (i = 1; i <= n; i++)
{
for (j = 1; j <= n; j++)
{
w [i, j] = nextInt(fr);
}
}
try {
fr.Close();
} catch (Exception ex) {
GLPK.glp_cli_error(ex.Message);
}
}
private int nextInt(System.IO.StreamReader fr)
{
for (;;)
{
if (line.Count == 0)
{
string buf = fr.ReadLine();
if (buf == null)
{
GLPK.glp_cli_error("End of file reached");
}
line.AddRange(buf.Split(' '));
}
string token = (string)line [0];
token = token.Trim();
line.RemoveAt(0);
if (token.Length > 0)
{
return(Convert.ToInt32(token));
}
}
}
