What is the purpose of the manipulator setw? Which header file must be included to use the function setw?
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What is the purpose of the manipulator setw? Which header file must be included to use the function setw?
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- Discussion: Files with .h extension are called header files in C. These header files generally contain function declarations which we can be used in main C program, like for e.g. to include stdio.h in C program to use function printf() Exercise 2. Creating myhead.h : Write the below code and then save the file as myhead.h or you can give any name but the extension should be .h indicating it’s a header file. // It is not recommended to put function definitions // in a header file. Ideally there should be only // function declarations. Purpose of this code is // to only demonstrate working of header files. void add(int a, int b) { printf("Added value=%d\n", a + b); } void multiply(int a, int b) { printf("Multiplied value=%d\n", a * b); } Including the .h file in other program : Now as we need to include stdio.h as #include in order to use printf() function. We will also need to include the above header file myhead.h as #include”myhead.h”. The ” ” here are used to instruct…Don't use any inbuilt function.This question has three parts a. Write a C function called stringCopy(destination, source). This function takes two C strings as parameters and copies the source string into the destination string. Once the copy is completed, the function returns the number of characters (except null) that were copied. You cannot use the C library functions strcpy, strcat or any of their variants. You need to write all the code required to do the copy yourself. However, you may use a C library function to determine the length of a string. b. What is the important precondition for stringCopy to work? Explain why the precondition is necessary. c. Write a C main program to demonstrate/test that your stringCopy function works. You will need the program to read user input into the source string.
- Create a function that takes an argument by value as a const; then try to change that argument in the function body. Please submit your code in C++.Code using c++ Instructions: In the code editor, you are provided with the definition of a struct Person. This struct needs an integer value for its age and a character value for its gender. Furthermore, you are provided with a displayPerson() function which accepts a struct Person as its parameter. In the main(), there are two Persons already created: one Male Person and one Female Person. Your task is to first ask the user for the age of the Male Person and the age of the Female Person. Then, define and declare a function called createKidPerson() which has the following definition: Return type - Person Name - createKidPerson Parameters Person father - the father of the kid to be created Person mother - the mother of the kid to be created Description - creates a new Person and returns this. The age of this Person will be set to 1 while its gender will be set based on the rules mentioned above. Finally, create a new Person and call this createKidPerson() in the main and then…Write a C function called stringCopy(destination, source). This function takes two C strings as parameters and copies the source string into the destination string. Once the copy is completed, the function returns the number of characters (except null) that were copied. You cannot use the C library functions strcpy, strcat or any of their variants. You need to write all the code required to do the copy yourself. However, you may use a C library function to determine the length of a string. b. What is the important precondition for stringCopy to work? Explain why the precondition is necessary. c. Write a C main program to demonstrate/test that your stringCopyfunction works. You will need the program to read user input into the source string.
- What does it mean to provide parameters to a function in the right order when it accepts more than one?What does function sqrt do? Which header file must be included to use the function sqrt?C++ : Write a function that has three C++ strings as parameters. It searches the first parameter to find the secondparameter (as a substring) and replaces it with the third parameter. It returns the changed first parameter if the substringcan be found; otherwise, it returns the original first parameter. Test your function in a program.
- In this lab, you complete a partially written C++ program that includes a function named addNumbers () that adds three int values to find their sum. Four ints should be passed to the addNumbers () function, the three numbers to be added ( num1, num2, and num3) should be passed by value, and another int ( sum ) to hold the sum of the three numbers should be passed by reference, enabling the addNumbers () function to change its value. The source code file provided for this lab includes the necessary variable declarations and input and output statements. Comments are included in the file to help you write the remainder of the program. 1. Open the source code file named AddThree.cpp using Notepad or the text editor of your choice. 2. Write the addNumbers ) function, the function declaration, and the function call as indicated by the comments. 3. Save this source code file in a directory of your choice, and then make that directory your working directory. 4. Compile the source code file…Write a C function called stringCopy(destination, source). This function takes two C strings as parameters and copies the source string into the destination string. Once the copy is completed, the function returns the number of characters (except null) that were copied. You cannot use the C library functions strcpy, strcat or any of their variants. You need to write all the code required to do the copy yourself. However, you may use a C library function to determine the length of a string.What is an inline function? How do you define an inline function?
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