Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 13: Problem 18

The __________ member function reports when the end of the file has been encountered.

Short Answer

Expert verified
Answer: The member function is `eof()`.

Step by step solution

01

Introduction to file streams

File streams are objects of classes related to input/output (I/O) in C++ programming. They are used to perform read and write operations on files. The fstream classes, which include ifstream (for input) and ofstream (for output), are part of the C++ standard library. When working with file streams, certain member functions are available to make file I/O easier.
02

Finding the end-of-file member function

To check if the end of a file has been reached during a read or write operation, the object's member function called `eof()` can be used. This function returns true if the end-of-file (EOF) has been encountered, and false otherwise. Example code snippet: ```cpp #include #include using namespace std; int main() { ifstream inputFile("example.txt"); if (!inputFile) { cout << "Error opening file." << endl; return 1; } string line; while (!inputFile.eof()) { getline(inputFile, line); cout << line << endl; } inputFile.close(); return 0; } ``` In this example, we open a file called `example.txt` for input using an ifstream variable named `inputFile`. If the file fails to open, an error message is displayed. Otherwise, we read the file line by line until its end is reached, using the `!inputFile.eof()` condition in the while loop. The `getline()` function reads each line and stores it into the string variable `line`, which is then output to the console. When the EOF is reached, the loop will exit, and the file is closed using the `close()` member function. So, the member function that reports when the end of the file has been encountered is `eof()`.

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

In __________ file access, the contents of a file may be read in any order.

A negative offset causes the file’s read or write position to be moved __________ in the file from the position specified by the mode.

In C++, __________ provide a convenient way to organize information into fields and records.

Suppose that you have two text files that contain sequences of integers separated by white space (blank space, tabs, and line breaks). The integers in both files appear in sorted order, with smaller values near the beginning of the file and large values closer to the end. Write a pseudocode algorithm that merges the two sequences into a single sorted sequence that is written to a third file.

Give a pseudocode algorithm for determining the length of a file: that is, the number of bytes that are stored in the file.
See all solutions

Recommended explanations on Computer Science Textbooks

Data Representation in Computer Science

Read Explanation

Big Data

Read Explanation

Game Design in Computer Science

Read Explanation

Issues in Computer Science

Read Explanation

Data Structures

Read Explanation

Functional Programming

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