How Not to Program in C++

136 Chapter 7

41 * Also if you don't empty a stack *

42 * before you're finished, an exception *

43 * is thrown. *

44 ************************************************/

45 class stack {

46 private:

47 // The stack's data

48 int data[MAX_DATA];

49

50 // Number of elements

51 // currently in the stack

52 int count;

53

54 public:

55 // Constructor

56 stack(void) : count(0) {};

57

58 // Destructor -- Check for non

59 ~stack(void)

60 {

61 if (count != 0)

62 {

63 throw(

64 problem("Stack not empty"));

65 }

66 }

67

68 // Push an item on the stack

69 void push(

70 const int what // Item to store

71 )

72 {

73 data[count] = what;

74 ++count;

75 }

76 // Remove an item from the stack

77 int pop(void)

78 {

79 if (count == 0)

80 throw(

81 problem("Stack underflow"));

82 --count;

83 return (data[coun ...