What is the difference between return 0 and return 0?

return 0 and return (0) are same. there is no difference.

Why do we add 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 happens when return 0?

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.

What does return 2 means in C?

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. Thus, if you have.

What is the difference between void main and int 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 the return statement work in C?

Pre-requisite: Functions in C/C++ The return statement returns the flow of the execution to the function from where it is called. This statement does not mandatorily need any conditional statements. As soon as the statement is executed, the flow of the program stops immediately and return the control from where it was called.

What is the purpose of return statement in C?

Return statements in many languages allow a function to specify a return value to be passed back to the code that called the function. In C and C++, return exp; (where exp is an expression) is a statement that tells a function to return execution of the program to the calling function, and report the value of exp.

What is ‘return value’ of functions in C?

Do you know how many values can be return from C functions? Always, Only one value can be returned from a function. If you try to return more than one values from a function, only one value will be returned that appears at the right most place of the return statement. For example, if you use “return a,b,c” in your function, value for c only will be returned and values a, b won’t be returned to the program.

How to return a string in C?

Strings in C are arrays of char elements, so we can’t really return a string – we must return a pointer to the first element of the string. This is why we need to use const char* : const char * myName () { return “Flavio” ; }