Quick Answer: What Is A Void Main?

Can main return void in C?

Microsoft C Alternatively, the main and wmain functions can be declared as returning void (no return value).

If you declare main or wmain as returning void, you cannot return an exit code to the parent process or operating system by using a return statement..

What is a void function?

Void functions are created and used just like value-returning functions except they do not return a value after the function executes. In lieu of a data type, void functions use the keyword “void.” A void function performs a task, and then control returns back to the caller–but, it does not return a value.

Does void mean pee or poop?

(voyd), To evacuate urine or feces.

What is Java void?

void is a Java keyword. Used at method declaration and definition to specify that the method does not return any type, the method returns void .

What is main () in C?

main() function is the function from where execution of any C program begins. So, main() function is mandatory for any C program.

What is a void?

noun. an empty space; emptiness: He disappeared into the void. something experienced as a loss or privation: His death left a great void in her life. a gap or opening, as in a wall. a vacancy; vacuum.

What is the void data type?

Overview. The void data type, similar to the Nothing data type described earlier, is the data type for the result of a function that returns normally, but does not provide a result value to its caller.

How do you end a void function?

Use return; instead of return(0); to exit a void function.

Is void a type?

The void type, in several programming languages derived from C and Algol68, is the type for the result of a function that returns normally, but does not provide a result value to its caller. Usually such functions are called for their side effects, such as performing some task or writing to their output parameters.

What is Getch C?

getch() is a way to get a user inputted character. It can be used to hold program execution, but the “holding” is simply a side-effect of its primary purpose, which is to wait until the user enters a character. getch() and getchar() are used to read a character from screen.

Can main be void?

The void main() indicates that the main() function will not return any value, but the int main() indicates that the main() can return integer type data. When our program is simple, and it is not going to terminate before reaching the last line of the code, or the code is error free, then we can use the void main().

What is #include in C?

The #include directive tells the C preprocessor to include the contents of the file specified in the input stream to the compiler and then continue with the rest of the original file.

What does return in C mean?

A return statement ends the execution of a function, and returns control to the calling function. Execution resumes in the calling function at the point immediately following the call. A return statement can return a value to the calling function.

What is the return type of printf () and scanf () function?

The printf() function is used for printing the output. It returns the number of characters that are printed. If there is some error then it returns a negative value.

Why void is used?

When used as a function return type, the void keyword specifies that the function does not return a value. When used for a function’s parameter list, void specifies that the function takes no parameters. When used in the declaration of a pointer, void specifies that the pointer is “universal.”

What is a void number?

Basically, voids represent non-existent characteristics. For example, if a person has a One (1) void, he is missing the letters A-J-S in his name. … A Three (3) void means there was no C, L or U in the name. Cross-referencing the numbers of the voids with their Keywords will help identify the qualities that are missing.

What does void main void mean in C?

The first void means that the main function returns no value. The second void in parenthesis (void) means that the main function accepts no arguments.

What is printf () in C?

“printf” is the name of one of the main C output functions, and stands for “print formatted”. printf format strings are complementary to scanf format strings, which provide formatted input (parsing). … Many languages other than C copy the printf format string syntax closely or exactly in their own I/O functions.

Why do we return 0 in C?

In C and C++ programs the main function is of type int and therefore it should return an integer value. The return value of the main function is considered the “Exit Status” of the application. On most operating systems returning 0 is a success status like saying “The program worked fine”.

What is the int main ()?

int main – ‘int main’ means that our function needs to return some integer at the end of the execution and we do so by returning 0 at the end of the program. 0 is the standard for the “successful execution of the program”. main – In C89, the unspecified return type defaults to int.

Why void main is wrong?

You generally want to know the exit status of your program. That’s the reason why you have the int main() — you return your exit status. It’s wrong because this is not what the C++ Standard specifies as a legal main . Nobody cares about what the other languages specify.