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817 B
817 B
This error type is reported in C and Objective-C. In many variadic methods,
nil is used to signify the end of the list of input objects. This is similar
to nil-termination of C strings. If one of the arguments that is not the last
argument to the method is nil as well, Infer reports an error because that may
lead to unexpected behavior.
An example of such variadic methods is arrayWithObjects
NSArray *foo = [NSArray arrayWithObjects: @"aaa", str, @"bbb", nil];
In this example, if str is nil then an array @[@"aaa"] of size 1 will be
created, and not an array @[@"aaa", str, @"bbb"] of size 3 as expected.