Question

Following programming standards, order the groups below the way they should be ordered in a file looking from the top to the bottom.

A) Global variables/constants
B) main function
C) Function prototypes
D) include directives
E) Additional Functions

Answer 1

In a file, codes are generally ordered from top to bottom as: include directives, global variables/constants, function prototypes, main function, and then additional functions. This ordering fosters readability and logical program flow.

Step-by-step explanation:

When organizing code in a file, especially in languages like C or C++, there is a general standard that is often followed for the sake of readability and structure. Following these standards helps maintain the code and allows other programmers to understand the structure and flow of the program.

1. include directives: These are usually at the very top of the file. They tell the compiler to include libraries that contain necessary functions and constants.
2. Global variables/constants: Defines any constants or global variables that will be used throughout the program.
3. Function prototypes: These are declarations of the functions that will be used in the program. They inform the compiler about the function's name, return type, and parameters before the functions are defined.
4. main function: This is the entry point of the program where the execution begins. It's typically placed after function prototypes and before additional functions.
5. Additional Functions: Here is where the actual function definitions are placed. These should follow 'main' so that 'main' can call them without issue.