🔒 Locked

using pointer access

Started by iram Jan 1, 2005 at 12:38 AM 3 replies 1.5k views

Original Post

Jan 1, 2005 at 12:38 AM

i have the following function in angelscript. cannot pass the address of an object over to the function, the compiler keep complaining about accessing error. how to do it correctly? void main() { Point3 p; p.x = 123; p.y = 456; p.z = 789; SC_Main_Point (&p); //cannot work!! } void SC_Main_Point (Point3 *po) { Console ("#####################"); ConsoleF (po->x); ConsoleF (po->y); ConsoleF (po->z); }

Deyja

125

Deyja

Jan 1, 2005 at 1:42 PM

Angelscript does not have that complete of pointer support. I'm fairly certain there is no address-of operator.

WitchLord

Mod

1,118

WitchLord

Jan 3, 2005 at 7:30 AM

AngelScript don't allow the manipulation of pointers, nor taking the address of variables, due to security reasons.

You can however pass parameters by reference, so doing the following would work:

void main(){Point3 p;p.x = 123;p.y = 456;p.z = 789;SC_Main_Point (p); // The point is passed by reference}void SC_Main_Point (Point3 &po){Console ("#####################"); ConsoleF (po.x);ConsoleF (po.y);ConsoleF (po.z); }

iram

Author

iram

Jan 7, 2005 at 7:59 AM

that works gracefully!!

btw, how to compare whether a pointer is null in angelscript ?

i tried to no valid:

float *p;

if (p == NULL) //does not work
{

}

WitchLord

Mod

1,118

WitchLord

Jan 7, 2005 at 12:34 PM

NULL doesn't exist in AS 1.10.1, but you should be able to use 0.

if( p == 0 )   ...

In AS 2.0.0 pointers don't exist as they do in C++, but there you have handles, which are basically smart pointers. With these you can compare with 'null' to verify if they are set or not.

Topic Locked

This topic has been locked by a moderator. New replies are not allowed.