Absolute C++ (4th Edition) part 41 docx

... initializes *n to 17 With earlier C++ compilers, if there was insufficient available memory to create the new variable, then new returned a special pointer named NULL. The C++ standard provides that ... == 42 *p1 == 53 *p2 == 53 *p1 == 88 *p2 == 53 Hope you got the point of this example! Pointers 415 The constant NULL is actually the number 0, but we prefer to think of it and spell it...

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... allow you to use the standard C++ libraries. ■ LIBRARIES AND include DIRECTIVES C++ includes a number of standard libraries. In fact, it is almost impossible to write a C++ program without using ... but for now we only need include direc- tives for standard C++ libraries. A list of some standard C++ libraries is given in Appendix 4. C++ has a preprocessor that handles some simp...

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... of a for statement may be any C++ expressions; therefore, they may involve more (or even fewer) than one variable, and the variables may be of any type. 1 The C++ standard does specify that ... ends the current iteration of the loop body. The break state- ment can be used with any of the C++ loop statements. We described the break statement when we discussed the switch statement. .....

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... score[2] , score[3] , and score[4] . The part that does not change, in this case score , is the name of the array. The part that can change is the integer in the square brackets, ... a[3]. This implementation is diagrammed in Display 5.2. Many of the peculiarities of arrays in C++ can only be understood in terms of these details about memory. For example, in the next...

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... in C, not C++. 16. When you define a C++ class, should you make the member variables public or private? Should you make the member functions public or private? 17. When you define a C++ class, ... or private? 17. When you define a C++ class, what items are considered part of the interface? What items are considered part of the implementation? ■ A structure can be used to combin...

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... accountCents*0.01; 85 balance = balance + fraction(rate)*balance; 86 accountDollars = dollarsPart(balance); 87 accountCents = centsPart(balance); 88 } 89 //Uses iostream: 90 void BankAccount::input( ) 91 { 92 ... balance $"; 94 cin >> balanceAsDouble; 95 accountDollars = dollarsPart(balanceAsDouble); 96 accountCents = centsPart(balanceAsDouble); 97 cout << "Enter interes...

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... dollarsPart(amountAsDouble); 153 cents = centsPart(amountAsDouble); 154 } 155 int Money::dollarsPart(double amount) const 156 < The rest of the definition is the same as BankAccount::dollarsPart ... return- Display 8.1 Operator Overloading (part 5 of 5) 157 int Money::centsPart(double amount) const 158 < The rest of the definition is the same as BankAccount::centsPart in Display...

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... processing in C++ without at least passing contact with C-strings. For example, quoted strings, such as "Hello" , are implemented as C-strings in C++. The ANSI/ISO C++ standard ... type described here may be a bit “old fashioned,” it is still widely used and is an integral part of the C++ language. ■ C-STRING VALUES AND C-STRING VARIABLES One way to represent a st...

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... directive using namespace Space1 as illustrated in Display 11.5. Display 11.5 Namespace Demonstration (part 2 of 2) 26 27 namespace Space1 28 { 29 void greeting( ) 30 { 31 cout << "Hello from ... void greeting( ) 37 { 38 cout << "Greetings from namespace Space2.\n"; 39 } 40 } 41 void bigGreeting( ) 42 { 43 cout << "A Big Global Hello!\n"; 44 } S...

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... PM Exception Handling Basics 771 Display 18.4 Catching Multiple Exceptions (part 2 of 2) 39 catch(NegativeNumber e) 40 { 41 cout << "Cannot have a negative number of " 42 << ... program to illustrate some C++ details about exception handling. It uses much too much machinery for such a simple task, but it is an other- wise uncluttered example of some C++ details....

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