What is the meaning of "a function which does not return a value" and " a function returns some value" ?? Please send the answer

Answer 1

// void function, no return value

void function()
{
//do something
}

// int function, return int value

int function ()
{
//do something
return 1;
}

// char function, return char value
{
// do something
return 'a';
}

// etc

Answer 2

You can see that functions that return nothing start with void keyword and have no return statement in their body.

// a function returning no value
void return_nothing() {
cout << "I have nothing to return";
}

Functions that return something start with the datatype of the thing you return, like int, double, string, etc.

// a function returning some value
int sum(int a, int b) {
// return sum of a and b
return a + b;
}

Answer 3

@Yasir Faiz Ahmed, when you call a function to do something, after it's done it can return some value

So return specifies what the function returns

example of a return function in C++:

#include <iostream>
using namespace std;

// user defined function returning a squared number
int square(int number) {
return number * number;
}

int main() {
int number = 4;
// print number
cout << number << endl;

// print squared number
cout << square(number) << endl;

// always have "return 0;" at the end of main function
return 0;
}

Answer 4

what is return? what it means?

Answer 5

In Python 3 is for this case a special codeword : pass. Here is a example : def some_func() : pass

Answer 6

It defines a valid function that returns nothing. You can use instead pass, none, but pass is more elegant.

Answer 7

Sorry for spaming about python.