Question

I have three fixed width integer types:

typedef int16_t TABCellManagedDataKey;
typedef int16_t TABCellManagedDataIndex;
typedef int32_t TABCellManagedDataKeyWithIndex;

And this is the code where they’re being used:

TABCellManagedDataKeyWithIndex keyWithIndex = key << 16 | index;
[[self managedModel] setObject:model forKey:@(keyWithIndex)];

With the new @() syntax for NSNumber literals, is it safe to do the following instead?

[[self managedModel] setObject:model forKey:@(key << 16 | index)

Answer 1

Yes. That is fine. @(N) is the same as [NSNumber numberWithX:N].