add inputs for ex4.1, ex4.3, ex5.2, ex5.3

ex4.1/Button.hh

@@ -0,0 +1,17 @@
+#ifndef BUTTON_HH
+#define BUTTON_HH
+
+#include <iostream>
+
+class Button {
+public:
+
+  Button() { std::cout << "Button Constructor " << this << std::endl ; }
+  Button(const Button&) { std::cout << "Button Copy Constructor " << this << std::endl ; }
+  ~Button() { std::cout << "Button Destructor " << this << std::endl ; }
+
+private:
+
+} ;
+
+#endif 

ex4.1/Cable.hh

@@ -0,0 +1,13 @@
+
+#include <iostream>
+
+class Cable {
+public:
+
+  Cable() { std::cout << "Cable Constructor " << this << std::endl ; }
+  Cable(const Cable&) { std::cout << "Cable Copy Constructor " << this << std::endl ; }
+  ~Cable() { std::cout << "Cable Destructor " << this << std::endl ; }
+
+private:
+
+} ;

ex4.1/Chassis.hh

@@ -0,0 +1,17 @@
+#ifndef CHASSIS_HH
+#define CHASSIS_HH
+
+#include <iostream>
+
+class Chassis {
+public:
+
+  Chassis() { std::cout << "Chassis Constructor " << this << std::endl ; }
+  Chassis(const Chassis&) { std::cout << "Chassis Copy Constructor " << this << std::endl ; }
+  ~Chassis() { std::cout << "Chassis Destructor " << this << std::endl ; }
+
+private:
+
+} ;
+
+#endif 

ex4.1/Dialer.hh

@@ -0,0 +1,20 @@
+#include <iostream>
+#ifndef DIALER_HH
+#define DIALER_HH
+
+#include "Button.hh"
+
+class Dialer {
+public:
+
+  Dialer() { std::cout << "Dialer Constructor " << this << std::endl ; }
+  Dialer(const Dialer&) { std::cout << "Dialer Copy Constructor " << this << std::endl ; }
+  ~Dialer() { std::cout << "Dialer Destructor " << this << std::endl ; }
+
+private:
+
+  Button buttons[12] ;
+
+} ;
+
+#endif 

ex4.1/Earpiece.hh

@@ -0,0 +1,16 @@
+#include <iostream>
+#ifndef EARPIECE_HH
+#define EARPIECE_HH
+
+class Earpiece {
+public:
+
+  Earpiece() { std::cout << "Earpiece Constructor " << this << std::endl ; }
+  Earpiece(const Earpiece&) { std::cout << "Earpiece Copy Constructor " << this << std::endl ; }
+  ~Earpiece() { std::cout << "Earpiece Destructor " << this << std::endl ; }
+
+private:
+
+} ;
+
+#endif 

ex4.1/Handset.hh

@@ -0,0 +1,25 @@
+#include <iostream>
+#ifndef HANDSET_HH
+#define HANDSET_HH
+
+#include "Mouthpiece.hh"
+#include "Earpiece.hh"
+#include "Cable.hh"
+
+class Handset {
+public:
+
+  Handset() { std::cout << "Handset Constructor " << this << std::endl ; }
+  Handset(const Handset&) { std::cout << "Handset Copy Constructor " << this << std::endl ; }
+  ~Handset() { std::cout << "Handset Destructor " << this << std::endl ; }
+
+private:
+
+  Mouthpiece mouthpiece ;
+  Earpiece earpiece ;
+  Cable cable ;
+
+
+} ;
+
+#endif 

ex4.1/Housing.hh

@@ -0,0 +1,22 @@
+#include <iostream>
+#ifndef HOUSING_HH
+#define HOUSING_HH
+
+#include "Chassis.hh"
+#include "Shell.hh"
+
+class Housing {
+public:
+
+  Housing() { std::cout << "Housing Constructor " << this << std::endl ; }
+  Housing(const Housing&) { std::cout << "Housing Copy Constructor " << this << std::endl ; }
+  ~Housing() { std::cout << "Housing Destructor " << this << std::endl ; }
+
+private:
+
+  Chassis chassis ;
+  Shell shell ;
+
+} ;
+
+#endif 

ex4.1/Mouthpiece.hh

@@ -0,0 +1,16 @@
+#include <iostream>
+#ifndef MOUTHPIECE_HH
+#define MOUTHPIECE_HH
+
+class Mouthpiece {
+public:
+
+  Mouthpiece() { std::cout << "Mouthpiece Constructor " << this << std::endl ; }
+  Mouthpiece(const Mouthpiece&) { std::cout << "Mouthpiece Copy Constructor " << this << std::endl ; }
+  ~Mouthpiece() { std::cout << "Mouthpiece Destructor " << this << std::endl ; }
+
+private:
+
+} ;
+
+#endif 

ex4.1/Shell.hh

@@ -0,0 +1,17 @@
+#ifndef SHELL_HH
+#define SHELL_HH
+
+#include <iostream>
+
+class Shell {
+public:
+
+  Shell() { std::cout << "Shell Constructor " << this << std::endl ; }
+  Shell(const Shell&) { std::cout << "Shell Copy Constructor " << this << std::endl ; }
+  ~Shell() { std::cout << "Shell Destructor " << this << std::endl ; }
+
+private:
+
+} ;
+
+#endif 

ex4.1/Telephone.hh

@@ -0,0 +1,25 @@
+#ifndef TELEPHONE_HH
+#define TELEPHONE_HH
+
+#include "Cable.hh"
+#include "Housing.hh"
+#include "Dialer.hh"
+#include "Handset.hh"
+
+class Telephone {
+public:
+
+  Telephone() { std::cout << "Telephone Constructor " << this << std::endl ; }
+  Telephone(const Telephone&) { std::cout << "Telephone Copy Constructor " << this << std::endl ; }
+  ~Telephone() { std::cout << "Telephone Destructor " << this << std::endl ; }
+
+private:
+
+  Cable cable ;
+  Housing housing ;
+  Dialer dialer ;
+  Handset handset ;
+
+} ;
+
+#endif 

ex4.3/String.hh

@@ -0,0 +1,28 @@
+#ifndef STRING_HH
+#define STRING_HH
+
+class String {
+public:
+
+  String(const char* str="") : _s(0) { insert(str) ; }
+  String(const String& a)  : _s(0) { insert(a._s) ; }
+  ~String() { delete[] _s ; }
+
+  int length() const { return _len ; }
+  const char* data() const { return _s ; }
+
+private:
+
+  char* _s ;
+  int _len ;
+
+  void insert(const char* str) { // private helper function
+     _len = strlen(str) ;
+     if (_s) delete[] _s ; 
+     _s = new char[_len+1] ;
+    strcpy(_s,str) ;
+  }
+
+} ;
+
+#endif 

ex5.2/data1.txt

@@ -0,0 +1,9 @@
+586
+2746
+348946
+-472
+72734
+-283
+263
+0
+4957

ex5.3/example.txt

@@ -0,0 +1,80 @@
+The upscale food court in the Time Warner Center can be derided for
+many reasons, but a lack of clear marking is not among them. From the
+moment you walk into the center, no matter which entrance you use, you
+encounter signs pointing the way to the preciously termed "restaurant
+and bar collection" a few stories up.
+
+But during a lunchtime visit to one of the restaurants last fall I
+encountered a well-dressed gentleman, perhaps in his early 60's, who
+paced before the elevators on the ground level. In a confused voice he
+asked me the location of the restaurant Per Se, where he had a coveted
+reservation.
+
+"The fourth floor," I said. He stared at me quizzically. I gestured to
+one of those signs. I repeated my answer. Finally he climbed aboard an
+elevator with me. But I could tell that he still had doubts. He seemed
+unable to believe that one of Manhattan's most ambitious new
+restaurants was high above the street in a corner of a shopping mall.
+
+In fact four of Manhattan's most ambitious new restaurants are in this
+"vertical retail environment," as its promoters prefer to call
+it. Their eagerness to euphemize underscores the boldness of their
+experiment: asking New York diners to consider elevators, escalators
+and bright indoor lighting appropriate visual preludes to extremely
+expensive dinners.
+
+Nearly a year since the center opened it is still too soon to tell
+whether that experiment will literally pay off. But those restaurants
+- Per Se, Masa and V Steakhouse on the fourth floor and Café Gray on
+the third - have been operating long enough for answers to other
+questions. How crucially is fine dining affected by an unusual
+physical context? What is it like to cross yards of gleaming marble
+and brave the glaring seductions of Samsung and Sephora on the way to
+and from an appointment with foie gras?
+
+It is usually disconcerting. It is sometimes disorienting. Alongside
+the restaurants on the fourth floor is a bar, the Stone Rose, whose
+music echoes up and down the hall, trapped under the same roof. I left
+Masa one night and felt my post-toro tranquility shatter under the
+oppressive beat and incongruous lyrics of "Hungry Like the Wolf." I
+was irritated like the coyote.
+
+But an hour and then a day later I did not remember Masa less fondly
+or long to return less ardently. The layout and gestalt of the Time
+Warner Center were annoyances, but they were ignorable. The center
+proves that restaurants transcend their trappings, a truth that was
+often overlooked as culinary connoisseurs fretted about celebrated
+chefs like Thomas Keller and Jean-Georges Vongerichten setting up
+kitchens in the kind of structure that often bestrides a highway
+access road.
+
+For New Yorkers the center is a jarring development but also a
+positive one. Without it Mr. Keller, the head chef of Per Se, might
+not have set up a kitchen here at all. Because the center is a
+mixed-use development in which the restaurants lend cachet to the
+residences and office space, Mr. Keller could be offered an economic
+safety net, a deal that insulated him from financial failure.
+
+Mr. Vongerichten, the supervising chef of V Steakhouse, benefited from
+a similar arrangement, and the aggregate glitter of these two helped
+to lure Masayoshi Takayama, the chef at Masa, and Gray Kunz of Café
+Gray. The four restaurants that they guide - plus a fifth, under the
+stewardship of the chef Charlie Trotter, to come sometime over the
+next year - probably wouldn't exist without their atypical commercial
+cradle.
+
+Would they be more appealing at street level, with sidewalks in front
+and portals that admitted natural light? In most ways, yes. Their odd
+situations yield unsettling effects. After hours in the dimly lighted
+fantasy of Per Se, a diner is thrust not into moonbeams and fresh air
+but into the harshly illuminated, stale reality of the rest of the
+center. A cold slap punctuates a warm hug.
+
+Or sometimes the rest of the center is thrust upon a diner. One night
+I watched a woman and her two teenage daughters, all three dressed in
+white Capri pants and brightly colored T-shirts, march straight into
+Masa and then into Per Se, just to have a look. Understandably they
+treated the exclusive restaurants on the fourth floor the way they had
+treated stores on the lower three, as crannies of a mall that invited
+exploration.
+