Running an analysis on my app results in the logical error in the subject. I don't really know what that means. Below is a screen of the error:
Dereferencing a null pointer always results in undefined behavior and can cause crashes. If the compiler finds a pointer dereference, it treats that pointer as nonnull. As a result, the optimizer may remove null equality checks for dereferenced pointers.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Extended Description. NULL pointer dereference issues can occur through a number of flaws, including race conditions, and simple programming omissions.
Test whether the variable is true. A simple if (ptr) tests whether ptr is TRUE. It will return FALSE if ptr is NULL, or if ptr is 0.
ABSTRACT Null pointer dereference (NPD) is a widespread vulnerability that occurs whenever an executing program attempts to dereference a null pointer. NPD vulnerability can be exploited by hackers to maliciously crash a process to cause a denial of service or execute an arbitrary code under specific conditions.
The path it's showing you is super
returning nil
. If this happens, you continue to execute the method; the implicit self deference is because isShowingLandscapeView
is an instance variable. You need to put all your initialisation inside the if (self)
block to avoid this.
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