Uncertain about returned value [SOLVED]

[Chrille]

I'm trying to make a function that looks for a value in an array, but I'm uncertain of how returning values work.

Here's what the function looks like, roughly:

Code: ags

function searchArray (int whichvalue) {
  int search = 0;

  while (search > -1) {
    search ++;
    if (array[search]==whichvalue) {
      ? return true; ?
    }
    if (search == 100) { // 100=array size
      ? return false; ?
    }
  }
}

Here's how I'd like to use it:

Code: ags

if (searchArray(1)==true) Display ("bla bla bla");

But as I said, I'm uncertain of how a certain value is returned. I'd just like to return a true/false value depending on if the wanted value is found in the array or not.

[Dualnames]

Code: ags

function searchArray (int whichvalue) {
  int search = 0;
bool doit;

  while (search > -1) {
    search ++;
    if (array[search]==whichvalue) {
    doit=true;
      return doit;
    }
    if (search == 100) { // 100=array size
    doit=false;      
   return doit;
    }
  }
}

It would be better to return the int so you can check with values 1 or 0. But there it is with  boolean.

[Chrille]

Yeah I might as well use an int. Thanks for the example!

[Khris]

In this case returning the wrong type should work, but in general, if the function is supposed to return a boolean value, it has to look like this:

Code: ags

boolean ArrayContains (int whichvalue) {
  int search = 1;
  while (search <= 100) {
    if (array[search] == whichvalue) return true;
    search++;
  }
  return false;
}

function is merely a substitute for int; in theory, every function should use the return type instead of "function" or "void" if it isn't supposed to return anything.

[monkey0506]

To clarify that the type for boolean in AGS is bool so it would be:

Code: ags

bool ArrayContains(int whichvalue) {

Also, in AGS the following types all have implicit conversions to int:

bool
char
short
(any enumerated type)

So returning any of those types of values from a function would work. However if you want to return any pointer (such as a Character*, InventoryItem*, etc.), a String, or a float then you must specify the exact type you are working with as there is no implicit conversion possible.