objective-c : 구조체

snippet.m

Structs

//for example :

typedef struct {
  CLLocationDegrees latitude;
  CLLocationDegrees longitude;
} CLLocationCoordinate2D;


//CLLocationDegrees, which is a synonym for double:
typedef double CLLocationDegrees;

so, CLLocationCoordinate2D is basically this:

typedef struct {
  double latitude;
  double longitude;
} CLLocationCoordinate2D;


//The reason the designers of Core Location used CLLocationDegrees instead of double is that 
//“CL Location Degrees” tells you what this datatype is intended for: it stores the degrees of a location.