Hi,
how do u write a prototype of a function that passes by reference
and at the moment i have the definition asCode://function definition int playerLoss(int &playerMoney) { int x=45; return playerMoney-=x; }
I keep getting an error message saying:cannot convert parameter 1 from 'int *__w64 ' to 'int &'Code:int playerLoss( int & a );
Im using msvc express...
The error is not in the declaration/definition of the function. It's the way you call it.
Show the code.
Kurt
In other words, don't put & before the variable you pass.Code:void foo (int& my_int) { my_int = 50; } int main { int a = 10; cout << a << endl; // 10 foo(a); // OK foo(&a); // ERROR cout << a << endl; // 50 }
Originally Posted by Adak
thanx elysia that worked.
So You only use '&' in the function prototype/definition and not actually when u make the function call
Correct. & is used to get the address of a variable - thus only required when using pointers.
makes sense now.Thanks again
& has several meanings.
In variable declarations (such as your function prototype) it means declaring a reference.
Before a variable (but not following a type-name) it is the address-of operator (to obtain a pointer to that variable).
And finally it is the bitwise AND operator (between two variables/literals).
I might be wrong.
Quoted more than 1000 times (I hope).Thank you, anon. You sure know how to recognize different types of trees from quite a long way away.
