#define MD(val, key, vals...) [NSMutableDictionary dictionaryWithObjectsAndKeys:val, key, ## vals , nil]
then do:
NSMutableDictionary* dict = MD(@"value1", @"key1", @"value2", @"key2")
And so on. Courtesy of http://news.ycombinator.com/item?id=1789839.
#define MD(...) [NSMutableDictionary dictionaryWithObjectsAndKeys:__VA_ARGS__, nil]But for MD(val, key, vals...), it'd give you a slightly better error, complaining about the number of arguments when you do MD().
Otherwise they are the same in this case.
## removes one non-whitespace character – often the comma – before the ## if vals or __VA_ARGS__ is empty.
e.g
#define MO_LogDebug(fmt, ...) NSLog((@"DEBUG " fmt), ##__VA_ARGS__)
MO_LogDebug(@"This works as expected %d", resultCode);
// Removes the comma automatically in here:
// NSLog((@"DEBUG " @"This works too without args"), );
MO_LogDebug(@"This works too without args");