Homework Assignment 0
                               CS 340d
                         Unique Number: 50960
                             Spring, 2019

                       Given:  January 23, 2019
                        Due:  January 30, 2019


This assignment is a warm-up exercise.  We will be using C for
various programming assignments. For those of you who have not
used C, this assignment will give you a chance to familiarize
yourself with the language.

This assignment has two parts.

Part A:  Write a program that prints all of the arguments given to the
``main'' procedure of a C program.  The procedure ``main'' is the
first user-visible code that is run when the compiled result of C
program is executed.  When your program exits, the status code should
return -1 if there was an error, otherwise it should return the value
of the ``main'' formal parameter ``argc''.

Output for the environment variables should be handled as follows:
Print the length of the value of each environment variable in a five
character field, followed by the environment variable name and its
value.  For example, for the environment variable ``TERM'', you might
see:

  14 TERM xterm-256color


Part B:  What does the following code do?

int has_what_property( unsigned long int x ) {
    return ((x - 0x101010101010101) & (~x) & 0x8080808080808080) != 0;
    }

Write an alternative specification, as a C-language definition that
makes it clear what this code does.  How could you confirm that the
function has_what_property() meets your specification?