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#define kIsError (   EXPRESSION)    kIsError_(EXPRESSION)

Returns kTRUE if the given status value is not kOK.

This macro is guaranteed to evaluate its arguments only once.

Parameters
EXPRESSIONExpression that evaluates to a kStatus value.
Returns
kTRUE if the argument is not equal to kOK; kFALSE otherwise.
See also
Error Handling