Visual C++ :: Creating Loop To Call In Entries From Text File Named Set

I am trying to create a loop to call in the entries from the text file named Set. The entries of Set.txtare :

1 2 3
2 4 5
and so on .. (64 such combinations)[/CODE]

It basically means the first combination for testing is 1 2 3 and next has to be 2 4 5 and so i have 64 such entries defined in set

My test files are located in D://data// and are named tst_data1 to tst_data64.

I created a loop for test set but its incorrect

Code:
// loop for test samples
char basefilename[] = "D://data//";
char , testFilen[160], numiChar[10];

for (int i=1; i<=64; i++) {
strcpy(basefilenme, "D://data//");
strcat(testfilename, Set[]);

[Code] .....

How can i call the Set .txt and how to define it.