Please note, you are required to include the following when you use g++ to compile: -pedantic

For example:

g++ -pedantic filename.cpp

This will give a warning if you attempt to use any non-standard feature in g++. You must correct your code so that you do not receive any warnings of this type.

Log on to the Linux server.

Use four files as in the previous assignment:

Short.h

Short.cpp

ShortMain.cpp

Makefile

Make the following deletions, changes and additions to Short.h:

#ifndef _SHORT_H_DEF_ //replace with your initials

#define _SHORT_H_DEF_

#include

using namespace std;

enum display_type {DEC, BIN, HEX, ERROR};

class Short

{

signed char _n;

display_type _dt;

void _display_BIN( ostream& )const;

void _display_HEX( ostream& )const;

//other private member functions as needed

public:

Short( ); // _n == 0 && _dt == DEC

Short( signed char, display_type = DEC );

Short( const char* );

// char* must be well-formed (see definition below)

// if not well-formed: _n == 0 && _dt == DEC

Short ( const Short& );

// Immediate operators

Short& operator= (const Short&);

Short& operator+= (const Short&);

Short& operator-= (const Short&);

Short& operator*= (const Short&);

Short& operator/= (const Short&);

Short& operator%= (const Short&);

// I/O functions

friend ostream& operator<< (ostream&, const Short&);

// Writes the number in either decimal, binary, or hexadecimal form

// This is determined by the value in _dt

// Do not include a gratuitous newline

friend istream& operator>> (istream&, Short&);

// operator>> must read what operator<< writes

// It must be able to read DEC, BIN, or HEX

// Arithmetic operators

Short operator+ (const Short&) const; //[1]

Short operator+ (signed char) const;

friend Short operator+ (signed char, const Short&);

Short operator- (const Short&) const;

Short operator- (signed char) const;

friend Short operator- (signed char, const Short&);

Short operator* (const Short&) const;

Short operator* (signed char) const;

friend Short operator* (signed char, const Short&);

Short operator/ (const Short&) const;

Short operator/ (signed char) const;

friend Short operator/ (signed char, const Short&);

Short operator% (const Short&) const;

Short operator% (signed char) const;

friend Short operator% (signed char, const Short&);

// Comparison operators

bool operator== (const Short&) const;

bool operator== (signed char) const;

friend bool operator== (signed char, const Short&);

bool operator!= (const Short&) const;

bool operator!= (signed char) const;

friend bool operator!= (signed char, const Short&);

bool operator> (const Short&) const;

bool operator> (signed char) const;

friend bool operator> (signed char, const Short&);

bool operator< (const Short&) const;

bool operator< (signed char) const;

friend bool operator< (signed char, const Short&);

bool operator>= (const Short&) const;

bool operator>= (signed char) const;

friend bool operator>= (char, const Short&);

bool operator<= (const Short&) const;

bool operator<= (signed char) const;

friend bool operator<= (signed char, const Short&);

// Unary operators

Short operator++ (int); //post

Short operator-- (int); //post

Short& operator++ (); //pre

Short& operator-- (); //pre

Short operator- () const;

Short operator+ () const;

// Just for fun, do this recursively

Short pow( unsigned exp ) const; //returns (*this)exp

void set_display_type( display_type );

};

#endif

Well-formed For this assignment, we will define a string of characters to be well-formed if it satisfies one of the following requirements:

Contains three, two, or one base-ten symbols[2] and nothing else

Meets the first requirement and begins with either the minus sign- or the plus sign +

Contains two base-16[3] symbols followed by h and nothing else

Contains four base-two symbols[4], followed by a space character, followed by four more base-two symbols, followed by b and nothing else.

Note: Overflow can lead to interesting results. For example, if you use either the number 128 or the character string 128, your Short should contain the value -128. This is not an error in your code; it is the result of overflow.

In Short.cpp, implement these member functions and the following helper function:

//determines and returns the type of a char*, either DEC, BIN, HEX. It returns ERROR if the char* is not well-formed

display_type type ( const char* );

Write other helper-functions as needed. I have several. Place the prototypes for helper functions at the top of your Short.cpp file and the implementations at the bottom of the file. These are not member functions and should not be in your Short.h file.

You must not use any built-in functions

In ShortMain.cpp, write a test main to test your code. Remember: code that does not compile will not be graded and will receive a grade of ZERO. You must thoroughly test ALL of your code to ensure that it compiles and works correctly.

Submit these four files via the Canvas drop-box (append .txt to change Makefile to Makefile.txt)

[1] Implement all of the arithmetic operators in terms on the immediate operators. For example, use operator+= to implement operator+.

[2] Base-ten symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

[3] Base-16 symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F

[4] Base-two symbols: 0, 1