Using global functions in AngelScript

Question

I have a problem to make use of AngelScripts global functions inside a C++-application.

In my .cpp file I have the function:

int multi(int x, int y)
{
    int z = x * y;
    cout << x << endl;
    cout << y << endl;
    return z;
}

I'm registering it by using:

engine->RegisterGlobalFunction("int multi(int &out, int &out)", asFUNCTION(multi), asCALL_CDECL);

In my .as file I call the function like this:

multi(1, 2);

So in this case I want x to be 1 and y to be 2, but when I print the values with cout it's something like x = 4318096 and y = 4318100.

I can't figure out where my mistake is. I appreciate any help I can get.

score 1 · Accepted Answer · answered Oct 27 '14 at 09:01

1

You register this function wrong. It should be:

engine->RegisterGlobalFunction("int multi(int, int)", asFUNCTION(multi), asCALL_CDECL);

Out means this function will use this parameter as output.

answered Oct 27 '14 at 09:01

Tomashu

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thank you very much, I was sure it would be something that simple – Zydar Oct 27 '14 at 09:32

score 0 · Answer 2 · edited Jun 12 '15 at 00:23

0

It should be:

engine->RegisterGlobalFunction("int multi(int, int)", asFUNCTION(multi), asCALL_CDECL);

When you use out it expects you to set the out value. And it doesn't get set before it enters the function. I'd you do it as I mentioned it will be set and doesn't expect it to be set. Good luck.

edited Jun 12 '15 at 00:23

josliber

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answered Jun 12 '15 at 00:21

Anth0ny229

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Using global functions in AngelScript

2 Answers2