Best to describe with some code.
This works:
vec3 diff = s.getPosition() - capturePosition;
float length = length2(diff);
And this throws null pointer exception (Null pointer access):
float length = length2(s.getPosition() - capturePosition);
"vec3" is registered type with overloaded operator "-". Is there any reason why it shouldn't work without storing result in variable?
vec3 is registered as (leaving out unrelated stuff)
engine->RegisterObjectType("vec3", sizeof(Vec3Primitive), asOBJ_VALUE | asOBJ_POD | asOBJ_APP_CLASS_CDAK);
engine->RegisterObjectBehaviour("vec3", asBEHAVE_CONSTRUCT, "void f()", asFUNCTION(vec3Constructor), asCALL_CDECL_OBJLAST);
engine->RegisterObjectBehaviour("vec3", asBEHAVE_CONSTRUCT, "void f(float,float,float)", asFUNCTION(vec3Constructor3), asCALL_CDECL_OBJLAST);
engine->RegisterObjectBehaviour("vec3", asBEHAVE_DESTRUCT, "void f()", asFUNCTION(vec3Destructor), asCALL_CDECL_OBJLAST);
engine->RegisterObjectMethod("vec3", "vec3 opSub(const vec3)", asMETHOD(Vec3Primitive,opSub), asCALL_THISCALL);
engine->RegisterGlobalFunction("float length(const vec3)", asFUNCTION(Vec3Primitive::length), asCALL_CDECL);
void vec3Constructor(void *memory){
new(memory) Vec3Primitive();
}
void vec3Constructor3(float x, float y, float z, void *memory){
new(memory) Vec3Primitive(x, y, z);
}
void vec3Destructor(void *memory){
((Vec3Primitive*)memory)->~Vec3Primitive();
}
static float length2(const Vec3Primitive vec3){
return vec3.x * vec3.x + vec3.y * vec3.y + vec3.z * vec3.z;
}
Vec3Primitive opSub(const Vec3Primitive other){
return Vec3Primitive(x - other.x, y - other.y, z - other.z);
}
I'm using AngelScript version 2.31.1
I've registered this class some time ago and just now added operator overloading, which brought this error. Maybe I am doing something obviously wrong?
