/*
  Name:    arg.h
  Purpose: provides support for processing command-line arguments
  Author:  Bill Slough
*/

#ifndef ARG_H
#define ARG_H

struct args_t{
    char option;        /* 'c', 'd', 'u', or 'n' (none) */
    char *inputFile;    /* filename provided on command line */
};

/* Process the arguments from a given command line, checking for errors,
   summarizing the results in an args_t structure */
void process_args(int argc, char *argv[ ], struct args_t *argument);

/* Tell the user how to use this program */
void display_usage(char *pname);

#endif