Understanding of 'true' and '@1', is this a same?
Clash Royale CLAN TAG#URR8PPPUnderstanding of 'true' and '@1', is this a same?
I try to understand something in Obj-C: I read this Q-A but still I don't understand following use case:
we know that:
#define YES ((BOOL)1)
#define NO ((BOOL)0)
I try to store boolean value into dictionary:
Case 1:
json[@"key"] = @NO;
or
json[@"key"] = @YES;
Case 2:
BOOL isSomeFlag = /* ... */
json[@"key"] = @(!isSomeFlag);
or:
json[@"key"] = @(isSomeFlag);
so I get different results: in 1st case true or false, in 2nd case: @0 or @1
true
false
@0
@1
is this the same? a.e. @0 = false?
@0
false
Do I need to cast to BOOL like: json[@"key"] = @((BOOL)!isSomeFlag);
to get the same results?
BOOL
json[@"key"] = @((BOOL)!isSomeFlag);
Thanks,
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Litterals, they are just short code. clang.llvm.org/docs/ObjectiveCLiterals.html
– WrightsCS
2 mins ago