#include <time.h>
#include <sys/time.h>
#include <Foundation/NSObject.h>

@interface MaClasse : NSObject
- (void) appel;
@end

@implementation MaClasse
- (void) appel
{
}
@end

static void
appel (void)
{
}

static inline void
appel_enligne (void)
{
}

#define NB_APPELS 1000000000
#define TEST_APPELS(_nom, _appel) \
{ \
  int i; \
  struct timeval debut, fin, diff; \
 \
  gettimeofday (&debut, NULL); \
  for (i = 0; i < NB_APPELS; i++) \
    (_appel); \
  gettimeofday (&fin, NULL); \
 \
  timersub (&fin, &debut, &diff); \
  printf ("Temps appels %s : %.1fs\n", (_nom), \
	  (double) diff.tv_sec + (double) diff.tv_usec / 100000.0); \
}

int
main (int argc, char **argv)
{
  TEST_APPELS("macro", 1);

  TEST_APPELS("C", appel());
  TEST_APPELS("C en ligne", appel_enligne());
  
  MaClasse *obj = [[MaClasse alloc] init];
  TEST_APPELS("Objective-C", [obj appel]);
  
  IMP methode = [obj methodForSelector: @selector(appel)];
  TEST_APPELS("Objective-C en cache",
	      methode(obj, @selector(appel)));

  return EXIT_SUCCESS;
}