Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 12: Problem 11

Consider the following function declarations from the definition of the class Money in Display 11.4. void input(istream& ins); void output(ostream& outs) const; Rewrite these function declarations so that they do not need to be preceded by using namespace std; (You do not need to look back at Display 11.4 to do this.)

Short Answer

Expert verified
The result of rewriting two function declarations without the "using namespace std" statement is as follows: ```cpp void input(std::istream& ins); void output(std::ostream& outs) const; ``` By explicitly specifying the standard namespace ('std::') before 'istream' and 'ostream', the dependency on the "using namespace std" statement has been removed.

Step by step solution

01

Identify the objects from the standard "std" namespace

In the given function declarations, "istream" and "ostream" are objects from the standard "std" namespace. These objects should be explicitly referred to using their namespace to remove the dependency on the "using namespace std" statement.
02

Rewrite the function declarations with explicit namespace

The function declarations can be rewritten as: ```cpp void input(std::istream& ins); void output(std::ostream& outs) const; ``` Now, they do not need the "using namespace std" statement because "std::" has been added before "istream" and "ostream" to specify the namespace explicitly.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

When you define a class in separate files, there is an interface file and an implementation file. Which of these files needs to be compiled? (Both? Neither? Only one? If so, which one?)

include using namespace std; namespace sally { void message( ); } namespace { void message( ); } int ma… # What is the output produced by the following program? #include using namespace std; namespace sally { void message( ); } namespace { void message( ); } int main( ) { { message( ); using sally::message; message( ); } message( ); return 0; } namespace sally { void message( ) { cout << "Hello from Sally.\n"; } } namespace { void message( ) { cout << "Hello from unnamed.\n"; } }

What is the difference between an ADT you define in \(\mathrm{C}_{++}\) and a class you define in \(\mathrm{C}++?\)

Suppose you define a class in separate files and use the class in a program. Now suppose you change the class implementation file. Which of the following files, if any, need to be recompiled: the interface file, the implementation file, or the application file?

Would the program in Display 12.8 behave any differently if you replaced the using directive using namespace dtimesavitch; with the following using declaration? using dtimesavitch::DigitalTime;
See all solutions

Recommended explanations on Computer Science Textbooks

Computer Organisation and Architecture

Read Explanation

Data Structures

Read Explanation

Computer Network

Read Explanation

Theory of Computation

Read Explanation

Issues in Computer Science

Read Explanation

Data Representation in Computer Science

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free