objective c - Iphone CLLocationCoordinate2D -

i new @ iphone , have problem.

i have code

for (int i=0; i<2; i++) {     datos *datos = (datos *)[arr_datos objectatindex:i];     cllocationcoordinate2d coord;     annotationitem *annotationitem = [[annotationitem alloc] init];     coord.latitude =[datos.latitud doublevalue];     coord.longitude = [datos.longitud doublevalue];      nslog(@"coord %f",coord.longitude);     nslog(@"coord %f",coord.latitude);     [annotationitem setcoordinate:coord];     //[annotationitem setestacion:estacion];      [mapview_ addannotation:annotationitem];     [annotationitem release];  } 

the problem doesn't done anything

but if change coord.latitude=40.444 , coord.longitude=-3.700;

this gives me want, don't want this, because have array many latitudes , longitudes. can me this? when put coord.longitude=[datos.longitude floatvalue];, doesn't work?

i'm using xcode 3.2.2

thanks , forgive me english.

the problem had change values, putting wrong values. have change

coord.latitude =[datos.longitud doublevalue];  coord.longitude = [datos.latitud doublevalue];  

thank time.