#include<stdio.h>
#include<conio.h>main()
{
}
You pass arguments to functions because that is how you tell the function what you want it to do. If you had, for instance, a function that calculated the square root of something, you would pass that something as an argument, such as a = sqrt (b). In this case sqrt is the function name, b is passed as its argument, and the return value is assigned to a.
36.6 46.2
Never. The geometric return is always lower than the arithmetic average returns unless the returns for the given set of data are all the same.
9
8
#include<iostream.h> int CheckPrime(int number){ for(int i=2;i<number;i++){ if(number%i==0) return 0; } return 1; } void main() { int num=7; cout<<CheckPrime(num); }
return
The return statement is used in functions to return control to the caller. If the function is declared non-void, the return statement also allows the programmer to return a value to the caller.
Where there is no need to return any type of value from a function
A function. You can have a function that returns but doesn't return a value with it.
square root of the argument
In programming, an argument takes a value or vales and performs an operation is called a function or method. If a method does not return a value, it is described as 'void'.
If the variable is declared within the function body, it is a local variable, one that is local to the function. Local variables fall from scope when the function returns, they are only accessible within the function. However, local variables can be returned by value, which creates an automatic variable that is returned to the caller. If the caller does not store the return value, the automatic variable falls from scope when the expression containing the function call ends. However, the expression may evaluate the return value without storing it. Note that functions cannot return local variables by reference since the local variable falls from scope when the function returns. If the variable is passed as an argument to the function, then the variable is a parameter of the function. Arguments may be passed by value or by reference, depending upon the function signature. Passing by value means the function parameter is a copy of the argument (if the argument is an object, the object's copy constructor is invoked automatically). Thus any changes made to the parameter within the function are not reflected in the argument that was originally passed, and the parameter will fall from scope when the function returns. However, the value of the parameter can be returned as previously explained. Passing by reference means the function parameter refers directly to the argument that was passed. Thus any changes made to the parameter are reflected in the argument. Parameters that are declared as constant references assure the caller that the reference's immutable members will not be altered by the function. If the parameter is a non-const reference but the caller does not wish changes to be reflected in the argument, the caller should pass a copy of the argument instead.
The sizeof operator returns the total size, in bytes, of the given operand, whereas the strlen function returns the number of characters in the argument up to but not including the first null-terminator.Consider a character buffer allocated 50 bytes to which you assign the string "Hello world". The sizeof operator will return 50, but the strlen function returns 11.
Function returns a value but sub procedure do not return a value.
The function header. The return value is written before the name of the function. This return type must match the type of the value returned in a return statement.
Yes, it does return. There are only few functions that do not return, like exit, exec, longjmp.