return program

[KARFER]

i want to know here that when i write a function like this int add (int a,int b) { int sum=0; sum=a+b; return sum; } i return sum but return sum to where.... that what i hope to know thank's for all

To Be Or Not To Be (KARFER)

[Mark Salsbery]

The value of sum is returned to the caller of add(). Somewhere else in your code you'd call add... int SumFromAdd = add(2,3); //SumFromAdd == 5 You can also choose to igore return values... add(2,3); // add() has been called but the return value wasn't used Note that there's no need to initialize sum to 0 in your function since the next line you initialize it to the sum of the two passed integers. You could shorten your function to: int add (int a,int b) { return a+b; } Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

[Hamid Taebi]

Sometimes you need to return value so you use of this cause here is two samples:

int add (int a,int b)
{
int sum;
sum=a+b;
return sum;
}

void test()
{
int c;
c=add(2,2);
}
////////////////////////////////////

Cstring add ()
{
CString str;
SYSTEMTIME st;
GetLocalTime(&st);
str.Format("%d:%d:%d:",st.wHour,st.wMinute,st.wSecond);

return str;
}
void test()
{
MessageBox(add());
}

---

WhiteSky

---