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In some programming language environments (at least one proprietary Lisp implementation, for example), [citation needed] the value used as the null pointer (called nil in Lisp) may actually be a pointer to a block of internal data useful to the implementation (but not explicitly reachable from user programs), thus allowing the same register to be used as a useful constant and a quick way of ...
Selenium WebDriver (Selenium 2.0) is fully implemented and supported in JavaScript , Python, Ruby, Java, Kotlin, and C#. As of 2021, Selenium 4 is a release candidate. As of 2021, Selenium 4 is a release candidate.
Dereferencing a null pointer and then assigning to it (writing a value to a non-existent target) also usually causes a segmentation fault: int * ptr = NULL ; * ptr = 1 ; The following code includes a null pointer dereference, but when compiled will often not result in a segmentation fault, as the value is unused and thus the dereference will ...