What is the significance of return 1?

return 1 in the main function means that the program does not execute successfully and there is some error. return 0 means that the user-defined function is returning false. return 1 means that the user-defined function is returning true.

What is the significance of return in C?

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.

Why do we put return 0 in C?

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 value?

Generally, a return value is used where the function is an intermediate step in a calculation of some kind. You want to get to a final result, which involves some values that need to be calculated by a function.

What is the meaning of return 0?

‘return 0’ means that the function doesn’t return any value. It is used when the void return type is used with the function. It is not mandatory to add a ‘return 0’ statement to the function which doesn’t return any value, the compiler adds it virtually.

What is meant by return 0?

What is the return type in function?

The result of a function is called its return value and the data type of the return value is called the return type. Every function declaration and definition must specify a return type, whether or not it actually returns a value. The user-defined type may also be defined within the function declaration.

What is the meaning of return 2?

In your case, it appears that the statements are taken from the body of a function returning an int (or a related type convertible from int ). So, return 2 simply returns the value 2.

What is the use of return(-1) in C?

The return(-1) in C used whenever user want a negative return from the method, it means the the method return false value. return -1; return 1; . In main function return 0 or exit(0) are same but if you write exit(0) in different function then your program will exit from that position returning different values .

What does return 0 mean in C++?

returning different values like return 1 or return -1 means that program is returning error . When exit (0) is used to exit from program, destructors for locally scoped non-static objects are not called. But destructors are called if return 0 is used.

What does 0 or 1 mean in a return statement?

In this case, the return statement stops the execution of the program, and 0 or 1 will denote the execution status. These status codes are just used as a convention for a long time in C language because the language does not support the objects and classes, and exceptions.

What does a return mean?

return 0: A return 0 means that the program will execute successfully and did what it was intended to do. return 1: A return 1 means that there is some error while executing the program and it is not performing what it was intended to do.