396 Chapter 8 ▼ The Preprocessor Exercises 1 A program that contains macros with arguments can be difficult to debug. Most C compilers provide an option that causes the preprocessor to write its output on the screen with no further compilation taking place. Put the following code in a file, say try_me.c. #include #define PRN (X) int main(void) { printf("x\n"); PRN (Hello from main()); return 0; Next, compile the program and run it. You will see that it does not print what was expected. To see how the preprocessor treats this code, give the command cc -E try_me.c (Use redirection if you want to take a careful look at what gets produced.) If the -E not option is not the right one for your compiler, find out what the correct option is. Note that the identifier PRN does not get generated by the preprocessor. Explain why. Fix the code. Hint: Use stringization.

396 Chapter 8 ▼ The Preprocessor Exercises 1 A program that contains macros with arguments can be difficult to debug. Most C compilers provide an option that causes the preprocessor to write its output on the screen with no further compilation taking place. Put the following code in a file, say try_me.c. #include #define PRN (X) int main(void) { printf("x\n"); PRN (Hello from main()); return 0; Next, compile the program and run it. You will see that it does not print what was expected. To see how the preprocessor treats this code, give the command cc -E try_me.c (Use redirection if you want to take a careful look at what gets produced.) If the -E not option is not the right one for your compiler, find out what the correct option is. Note that the identifier PRN does not get generated by the preprocessor. Explain why. Fix the code. Hint: Use stringization.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: Write a program that reads the student information from a tab separated values (tsv) file. The…

A: C++ codeCode screenshotInput file screenshotOutput file screenshot

Q: The template code must be incorporated into the following code after the template: // -- brief…

A: A complete code for the given template is as follows, File name: "main.cpp" #include…

Q: 15. Filename: password dls369.cpp, but replace my email id with yours. (a) Write a function which…

A: I give the code in C++ along with output and code screenshot

Q: I need to convert it from C to C++

A: Question given: A source code is given in C programming language. This source code is about reading…

Q: Python 3.8.5 Shell File Edit Shell Debug Options Window Help Python 3.8.5 (tags/v3.8.5:580fbb0, Jul…

A: In This Program You are importing a package with is Not installed. Firstly Run Command on the Shell…

Q: C Programming Write function updateHorizontal to flip the discs of the opposing player, it should…

A: Algorithm: Step 1: Define function checkHorizontal(). Initialize flank to 0 and count to 0. Step 2:…

Q: ALGORITHMS : Using C++ Language in NetBeans Write a program that sort elements using: 1) Quick…

Q: Question 11 A while loop continues to execute until its expression becomes ? O null O TRUE O empty O…

A: Programmers use a while loop, a fundamental building element, to repeatedly run a block of code as…

Q: File I/o Tutorial write a file - C++ Please How do you write information to a file? For example,…

A: In C++, to create a file we can use ofstream class. Syntax: ofstream file_object("filename.txt");

Q: The Assignment Assume you're trying to build an e-mailing list by analyzing some random text data…

A: Algorithms: START create cleanup methodWrite all prosses Create the main method while…

Q: Searching for a particular value is an example of a process filter. The program below reads a…

A: In simple searching, we compare each character with the character to be searched for. There are…

Q: Complete the concat program which opens and prints the files on the command line to the screen.…

A: C++ program to print data of all text files on screen, names of the file are given as command-line…

Q: Which line of the below code segment(s) is the wrong syntax that will cause an compilation error…

A: Given code snippet,#include <stdio.h>void main void(){{The given code snippet contains a few…

Q: Mirrored Matrices Concepts Tested: iterating through multi-dimensional arrays, functions, function…

A: The below code is the solution to the above problem:

Q: Done Write a C++ program, which creates a 10 X 10 matrix (matrix[10][10]) and stores in it 100…

A: Here, Code instruction is given.

Q: This exercise involves implementing the solution to the bounded buffer/readers and writers problem…

A: The following code accepts four command line arguments: - run_time (length of time the system should…

Q: Create two more functions (options #3 and #4 in your menu) by taking the to_celsius() and…

A: C++ program for the above two problems :

Q: HELLO please solve in c++. SHOW THE OUTPUT. INSTRUCTIONS ARE DOWN BELOW PLEASE COMPLETE.

Q: The following template must be implemeneted into the code following after: // -- brief statement as…

A: Programming Approach: Defining a necessary header file. To save the name of the planets, an enum…

Q: Please the code must be in c program Complete the two functions rotate_right and sudoku_checker…

A: Coded using C language.

Q: C+++ #include #include #include #define TOTAL_THREADS 4 int count; pthread_mutex_t…

A: CPP Code: #include <iostream> #include <pthread.h> #include <stdlib.h> #define…

Question

396 Chapter 8▼ The Preprocessor
Exercises
1 A program that contains macros with arguments can be difficult to debug. Most C
compilers provide an option that causes the preprocessor to write its output on the
screen with no further compilation taking place. Put the following code in a file, say
try_me.c.
#include <stdio.h>
#define PRN (X)
int main(void)
{
printf("x\n");
PRN (Hello from main());
return 0;
BETO
}
Next, compile the program and run it. You will see that it does not print what was
expected. To see how the preprocessor treats this code, give the command
cc -E try_me.c
(Use redirection if you want to take a careful look at what gets produced.) If the -E
option is not the right one for your compiler, find out what the correct option is.
Note that the identifier PRN does not get generated by the preprocessor. Explain
why. Fix the code. Hint: Use stringization.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Algorithm of the code

VIEW

Step 2: Source code

VIEW

Step 3: Screenshot of the source coe

VIEW

Solution

VIEW

Step by step

Solved in 4 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

>> IN C PROGRAMMING LANGUAGE ONLY << COPY OF DEFAULT CODE, ADD SOLUTION INTO CODE IN C #include <stdio.h>#include <stdlib.h>#include <string.h> #include "GVDie.h" int RollSpecificNumber(GVDie die, int num, int goal) {/* Type your code here. */} int main() {GVDie die = InitGVDie(); // Create a GVDie variabledie = SetSeed(15, die); // Set the GVDie variable with seed value 15int num;int goal;int rolls; scanf("%d", &num);scanf("%d", &goal);rolls = RollSpecificNumber(die, num, goal); // Should return the number of rolls to reach total.printf("It took %d rolls to get a \"%d\" %d times.\n", rolls, num, goal); return 0;}
The template shown below must be incorporated into the code showed after the template Template: // -- brief statement as to the file’s purpose //XXX XXX- ADD YOUR SECTION NUMBER //Include statements #include #include using namespace std; //Global declarations: Constants and type definitions only -- no variables //Function prototypes int main() { //In cout statement below SUBSTITUTE your name and lab number cout << "Your name -- Lab Number" << endl << endl; //Variable declarations //Program logic //Closing program statements system("pause"); return 0; } //Function definitions Code: #include<iostream>#include <iomanip> using namespace std; //function prototypesfloat convToFeet(float, float, float); //main functionint main() {// variable declarationchar woodType;float totalCharge = 0.0, eachCost = 0.0, woodWidth, woodHeight, woodLength;;int noOfpc;cout << setprecision(2) << fixed; //infinite loop until it obtains the character 'T'do{cout…
Topical Information Use C++. This lab should provide you with practice in file handling, libraries, and random variate generation. Program Information Write a program that allows the user to create files of random data. They should be offered a menu of possibilities: 1) create random Whole number data file 2) create random Decimal number data file 3) create random Character data file 4) Quit program The first 3 options should ask for appropriate bounds. Your program should make sure they are in order before passing them to your random value generation function. Then, ask how many random values to generate and what file to place them in. Assuming the file opened correctly, proceed to generate all requested random values. The menu should continue to loop until the quit option is chosen. Options should be choosable by either the number or the capitalized word. (For example, to quit, they should be able to enter 4, Q, or q.)
C++ Problem!! Sort A List Of Integers Given a file of 100,000 unsorted integers, write a program that first prompt user to enter file name and reads those integers into an array and sorts the integers in the array. The program should then prompt the user for an index, and then display the integer at that index. For example, if the array contains ten integers and the contents are 79 4 42 51 12 22 33 17 91 10 after sorting, the integer at index 6 is 42 Download the "List of 100,000 Unsorted Integers" from below link and sort that list, then enter the value at index 10000 (ten thousand) for a screenshot. https://1drv.ms/t/s!AuFS4mkcuYyBjHZ_SIudb93bq2uy?e=CsyvZj
C Programming What does the below do? Where is the output going? Where is the input coming from? #include <stdio.h> #define RECORD_LENGTH 60 void main(void) { FILE *fptr; char stock_price_shares[RECORD_LENGTH + 1]; if ((fptr = fopen("PORTFOLIO.DAT", "r")) == NULL) printf("\nCannot open the file: PORTFOLIO.DAT\n"); else { while ( fgets(stock_price_shares, RECORD_LENGTH + 1, fptr) != NULL ) fprintf(stdout, "\n%s", stock_price_shares); fclose(fptr); //close the file } }
(16) 6. You want to write a Java application that creates a while loop that runs until the user enters a 0 as input. Each time the while loop runs, it displays a menu of three choices as will be shown in the sample run below. When the program reads in the user's choice, that choice should be read in as a String called choiceStr. Then, choiceStr should be converted into an int called choice by using the code below: int choice Integer.parseInt(choiceStr); If the user enters a 1 for choice == 1, the program will print "Choice 1" to the screen. If the user enters a 2 for choice == 2, the program will print "Choice 2" to the screen. Here is a sample run: 0 - to quit 1 to print Choice 1 2 to print Choice 2 Enter choice: 1 Choice 1 0 - to quit 1 to print Choice 1 2 to print Choice 2 Enter choice: 1 Choice 1 0 to quit 1 to print Choice 1 2 to print Choice 2 Enter choice: 2 Choice 2 0 - to quit 1 to print Choice 1 2 to print Choice 2 Enter choice: 0
#include <iostream> using namespace std; int main() { // Write your main here return 0; }
Please code in C++ and no other language#include <string>#include <iostream>#include <iomanip>#include <fstream>#include <vector>using namespace std; int main() { /* TODO: Declare any necessary variables here. */ /* TODO: Read a file name from the user and read the tsv file here. */ /* TODO: Compute student grades and exam averages, then output results to a text file here. */ return 0;}
Macro parameters can be converted to strings inside the macro, a process called stringizing. Use that to modify the ASSERT macro so that it prints the assertion which failed. #ifndef MYASSERT_H#define MYASSERT_H #include <iostream>#define ASSERT(CONDITION, MSG) \if (!(CONDITION)) std::cerr << "ASSERT failed: "<< MSG << std::endl; \else std::cerr << "ASSERT passed" << std::endl; #endif Tester.cpp #include <iostream> #include <iomanip> #include <string> #include <cmath> using namespace std; #include "myassert.h" int main() { double n = 1 / 4; ASSERT(n == .25, "Invalid division"); cout << "Expected: ASSERT failed: n == .25: Invalid Division" << endl; double x = 12 % 5; ASSERT(x == 2.0, "Invalid remainder"); cout << "Expected: ASSERT passed: x == 2.0" << endl; }