Can main return an int C++?

The C++ standard explicitly says “It [the main function] shall have a return type of type int , but otherwise its type is implementation defined”, and requires the same two signatures as the C standard to be supported as options.

What is the return type of main () in C++?

The return value of main() function shows how the program exited. The normal exit of program is represented by zero return value. In C++ language, the main() function can be left without return value. By default, it will return zero.

Why we use int main () instead of void Main?

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().

How does a main function in C++ differ from main function in C?

Originally Answered: How does a main function in C++ differ from main in C? Main function in C++ must return an integer while in main function of C return type can be void as well. Though it is recommended to use returntype as int in main function of C as well.

Can the return type of the main function be int?

main function return type is integer by default. But it cam be void also . When return type is integer ,you have to include “return 0” statement at the end .

Can the return type of main function be int?

How does a main function in C++ differ from main in C?

What is the difference between int main () and int main void?

So the difference is, in C, int main() can be called with any number of arguments, but int main(void) can only be called without any argument. Although it doesn’t make any difference most of the times, using “int main(void)” is a recommended practice in C.

Does main need a return statement?

In a main function, the return statement and expression are optional. What happens to the returned value, if one is specified, depends on the implementation. Microsoft-specific: The Microsoft C implementation returns the expression value to the process that invoked the program, such as cmd.exe .

Why do we write return 0 in main function?

The main function is generally supposed to return a value and after it returns something it finishes execution. The return 0 means success and returning a non-zero number means failure. Thus we “return 0” at the end of main function.

What is the purpose of the return type for the main () function?

main function returns integer value by default. if zero is returned as exit status to indicate to Operating system that the program worked succesfully without any compile time or run time errors.