State instance where you need to use a pointer. Explain in clarity why and how it is essential to the program.
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State instance where you need to use a pointer. Explain in clarity why and how it is essential to the
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- Pointer Activity You do not need getopt for this program as there are no arguments. Call the executable pointers. Create variables for a character, a string, an integer, and a floating point number. Create pointers for each of those variables. Ideally, use the same name as the variable but add a p in front of the name. (For example: (total and ptotal) Ask the user to enter information for each of these variables one at a time. For each variable tell them what they should enter. (For example: “Enter a single character” or “Enter a floating point number”) Read in the information and put it in the variables. Make each pointer point to the respective variable. Print out values for the four variables without using the variables themselves. Only use the pointers. In addition print out the addresses of the memory locations that each pointer points to. You can use %p for that. Output should look like the bottom sample. Copy and paste the code and the output into a Word document and submit.…Language: C Concatenate two strings using pointers and dynamically allocating the memory for the results. Read two strings from the keyboard using the fgets function. Dynamically allocate the memory for the result using malloc function. Using pointers, copy the first string to the result , except the null terminator ( ’\0’) from the end from the first string. Copy the second string to the result, including the null terminator. Print your results. Free up memory with the free function. Use valgrind to check memory usage.What is a good reason for using pointers in a program? When might you prefer a pointer to a variable instead of the value of a variable?
- Consider the following scenario: you are given three numbers. Create a program to determine which of three numbers is the greatest and which is the lowest. Pointers are being used.The Issue: Many routines return a pointer when the value is correct and NULL when the value is incorrect. We have a fast method for testing for NULL.Specify the problems with the pointer's layout. In most programming languages, a pointer may only refer to a single kind of variable.
- please provide full and clear answer without copying from internet also use yourrrr ownnn wordddd a-what is the function ? b-how to run the program? c-indentify array and pointer ? and how they work ? d-how to apply the program? how to create program? e- what is the structure and basic fundanmental structure ? 18:41fix code and remove errorsExplain the problems with the design of the pointer. In most programming languages, pointers may only point to a single kind of variable.
