convenience macros for creating NSArray and NSDictionary instances

gistfile1.mm

#define A(...) [NSArray arrayWithObjects:__VA_ARGS__, nil]
#define D(...) [NSDictionary dictionaryWithObjectsAndKeys:__VA_ARGS__, nil]

NSArray *a = A(@"foo", @"bar");
NSDictionary *d = D(@"1", @"foo", @"2", @"bar");