Thread: cant open file - says no file or directory

actually if you are on a non-Microsoft platform, optarg is part of getopt as exemplified here. In any event you can't just assign it to a string and go for it. Here is how to use it (notice some bits missing in your code?)

Code:

/*************************************************
 * File: timer_main.cpp
 *************************************************/
#include "timer.hpp"
#include <iostream>
#include <string>
using namespace std;
#include <stdlib.h>
#include <getopt.h>

#define CMDOPTS "hi:"



void Usage()
{
    cout << "Usage: Blah blah" << endl;
    exit(-1);
}

int main(int argc, char *argv[])
{
   cout << "timer_test 1.0" << endl;
   string inputFile = "";
   int nRC = 0;
   opterr = 0;
   int c;
   while((c = getopt(argc, argv, CMDOPTS)) != EOF)
   {
      switch(c)
      {
	 case 'h':
	 {
	    Usage();
	    break;
	 }
	 case 'i':
	 {
	    inputFile = optarg;
	    break;
	 }
      }
   }

   /// ignore all this; from another experiment...
   //timer(60);
   int *board = create_board(3,3);
   int nValue = 0;
   for(int x=1; x<4; x++)
   {
      for(int y = 1; y < 4; y++)
      {
	 for(int z = 1; z < 10; z++)
	 {
	    board[x][y][z] = nValue++;
	    
	 }
	
      }

   }
   cout << "End processing." << endl;

   return nRC;
}