Which of the following commands stops a macro from expanding further?
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Which of the following commands stops a macro from expanding further?
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- Which of the following commands stops a macro from expanding further?Which of these commands stops a macro from expanding?Which of the following is a mistake when changes are made to models which are complex or poorly built? Choices: A. Where macros have been written poorly written B. All are instances of mistakes C. Where excessive absolute cell referencing is used D. Models which use hard-coded column or row numbers E. Where formulae are used that refer to range on multiple sheets
- 1. Write a macro with a name “UPACK" a. That unpacks given number of 2 digit packed decimals in memory to unpacked decimals. E.g. “39" would be “0309". b. How would you invoke this macro?The Problem: How do you create a macro that performs two statements.For example we wish to create a cleanup macro:#define CLEAN_RETURN \ close(in_fd);close(out_fd); return;But this code doesn't work if we put it in an if statement:if (done) CLEAN_RETURN;Expanding this we get:if (done) close(in_fd);close(out_fd); return;Let's add a little whitespace for clarity:if (done) close(in_fd);close(out_fd);return;This is not what we intended. One “solution” is to enclose the statementsin {}.#define CLEAN_RETURN \ { close(in_fd);close(out_fd); return; }Now our if statement expands to:if (done) { close(in_fd);close(out_fd); return; };This works. Sort of. The problem is if we try an if / else statement:if (done) CLEAN_RETURN;else not_done_yet();This gives us a syntax error when we try and compile it. Why?Let's look at the expanded code:if (done) { close(in_fd);close(out_fd); return; };else not_done_yet();There's an extra semicolon on the line. This didn't bother us when therewas no else, but now…Write a macro named mPrintChar that displays a single character on the screen. It shouldhave two parameters: this first specifies the character to be displayed and the second specifies how many times the character should be repeated. Here is a sample call:mPrintChar 'X',20
- Introduction to Macros in MarsRead about macros here:https://courses.missouristate.edu/kenvollmar/mars/help/MacrosHelp.htmlLab TasksIn Lab 6, you modified the for-loop macro presented in the above tutorial to include an interval. If you missed lab 6 or forgot about that, here is what you needed to do there: Lab 6 starts here:The for loop in the above tutorial prints a range of consecutive numbers. Copy the code from the tutorial to Mars and make it execute. The macro call: for ($t0, 1, 10, body) will lead to printing numbers from 1 to 10, one each in a new line. Your task is to modify the code to pass another argument (an interval) to the macro so that the numbers are printed with the given interval in the same line where a space separates the numbers. Your program will also print a string (“Here is the output: ”) before the series of numbers using the print_str macro. For example, Macro call: for ($t0, 1, 20, 3, body) will produce the following output: Here is the output: 1 4 7 10…Now, in this lab (Lab 7), you will make further modification to the same macro to make the for-loop more versatile. In addition to passing an interval, your macro call will be able to pass a character (‘i’ or ‘d’) indicating if you want to increment or decrement the value of the iterator. In the case of increment, the value of the to argument will be greater than the value of the from argument. Conversely, in the case of decrement, the value for the to argument will be less than the value of the from argument. Examples of macro calls and the output: Call: for ($t0, 1, 20, 'i', 3, body)Output: 1 4 7 10 13 16 19 Call: for ($t0, 20, 1, 'd', 3, body)Output: 20 17 14 11 8 5 2 Hints: In the macro, you may need to load 'i' and 'd' to two registers before comparing it to the increment/decrement type argument-register. You can use li instruction for this purpose. Based on the comparison results, your code will branch to two different labels where the iterator register will either be incremented…Which of the following is VALID for dynamic objects? Select one: a.Dynamic objects are created by using "new" operator along with pointers. O b.Dynamic objects are like automatic objects and they are removed automatically when program ends. c.Creating array of dynamic objects is not possible in C++ d.Dynamic objects cannot be created in C++.
- Fix the error(s) code in the picture 2, compile and output the results as shown in command prompt below.5. Write a macro named mPrintChar that displays a single character on the screen. It should have two parameters: this first specifies the character to be displayed and the second specifies how many times the character should be repeated. Here is a sample call: mPrintChar 'x',20Scenario You are implementing a program at work and you need to use a package that you have never interacted with before. You find that you need to write a script using the directory method to list all resources that are available in that package. Aim Use a function which will take a package or module name and print out the names of all the resources defined in the package or module using the directory method. Steps for Completion Define a function called resources_scanner that takes an argument package. Using the dir method create a variable to list all the resources that are available in that package. Inside the function, use a for statement to print and list each of the package’s resources. Run your script using the python3 main.py command in the terminal or by importing and calling your method in the interactive python shell. The output should be as shown in Snippet 8.37: >>>…