Question

Using Unix/Linux Command line in terminal and C programming.

(b) Write a basic C program contained in a1q4.c and perform the following tasks in your program’s main() function: (8 marks)

• Declare and initialize at least one variable of these types: char, int, unsigned int, float, double and long double. When initializing your variables, ensure the constants you use are of the same type as your variable. See the “Constants” section of Topic 7 for more information.

• Use printf(3) to output the contents of each of your variables in a readable format to standard output. For your floating-point variables, be sure to specify the exact precision (i.e. decimal places) to be printed. You can use as many or as few printf(3) statements and line breaks as you wish, as long as the output is easily readable. The man page for printf(3) gives details about the function’s arguments and any libraries which must be included to use the function.

• Terminate the program indicating success (i.e. use an exit status of 0). Be sure that the last character printed to the console before terminating is a newline character, otherwise your shell prompt will appear on the same line as the last line printed by your program.

Your program must compile without errors or warnings using the following command: gcc -Wall -Wextra -o a1q4 a1q4.c.

Include your answer and a log of compiling and running your program from question 4b.

Answer 1

Solution:- Hi, I'm going to paste the full running code, below:-

====================CODE BEGINS=================

#include <stdio.h>

int main() {

//Declare and initialize at least one variable

//of these types: char, int, unsigned int, float,

// double and long double

char var1 = 'S';

int var2 = -47;

unsigned int var3 = 47;

float var4 = 34.6;

double var5 = 90.09;

long double var6 = 5.2e-5;

//Print the variables

printf("The char is: %c\n", var1);

printf("The int is: %d\n", var2);

printf("The unsigned int is: %u\n", var3);

printf("The Float is: %f\n", var4);

printf("The Double is: %lf\n", var5);

printf("The Long double is: %Lf\n\n", var6);

return 0;

}

==================CODE ENDS===================

The screenshot of code as well as output is also attached, as requested in the problem:-

================SOLUTION ENDS===================

Note:- Please upvote if it helped, otherwise do comment on the part you didn't like, I'll be happy to help you.

Thanks!!