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Chapter 6: Problem 5

What include directive do you need to place in your program file if your program uses the function exit?

Short Answer

Expert verified
Answer: To use the `exit()` function, include the `stdlib.h` header file in a C program or the `cstdlib` header file in a C++ program.

Step by step solution

01

Identify appropriate header file for exit() function

The `exit()` function is defined in the `stdlib.h` header file in C and `cstdlib` header file in C++. We need to include this header file in the program to use the `exit()` function. For a C program:
02

Include the header file in the C program

To use the `exit()` function in a C program, include the `stdlib.h` header file at the beginning of the program by adding the following line: ```c #include ``` For a C++ program:
03

Include the header file in the C++ program

To use the `exit()` function in a C++ program, include the `cstdlib` header file at the beginning of the program by adding the following line: ```cpp #include ```

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Most popular questions from this chapter

Suppose you are writing a program that uses a stream called fin that will be connected to an input file and a stream called fout that will be connected to an output file. How do you declare \(f\) in and four? What include directive, if any, do you need to place in your program file?

Here is a code segment that reads input from infile.dat and sends output to outfile.dat. What changes are necessary to make the output go to the screen? (The input is still to come from infile. dat.) //Problem for Self Test. Copies three int numbers //between files. #include int main( ) { using namespace std; ifstream instream; ofstream outstream; instream.open("infile.dat"); outstream.open("outfile.dat"); int first, second, third; instream >> first >> second >> third; outstream << "The sum of the first 3" << endl << "numberss in infile.dat is " << endl << (first + second + third) << endl; instream.close( ); outstream.close( ); return 0; }

What characteristics of files do ordinary program variables share? What characteristics of files are different from ordinary variables in a program?

A program has read half of the lines in a file. What must the program do to the file to enable reading the first line a second time?

Consider the following code (and assume that it is embedded in a com- plete and correct program and then run): char next; int count = 0; cout << "Enter a line of input:\n"; cin.get(next); while (next != '\n') { if ((count%2) == 0) cout << next; count++; cin.get(next); } If the dialogue begins as follows, what will be the next line of output? Enter a line of input: abcdef gh
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