query: Is compound if checking for null and then other condition in C++ always safe?
positive_passages.docid: 8342
positive_passages.text: Is short-circuiting logical operators mandated? And evaluation order?
negative_passages.docid: 79477
negative_passages.text: Why is "null" present in C# and Java?
negative_passages.docid: 123797
negative_passages.text: Not equal  != operator on NULL
negative_passages.docid: 68676
negative_passages.text: Testing for nil in Objective-C -- if(x != nil) vs if(x)
negative_passages.docid: 148619
negative_passages.text: Is there a reason not to use  (null safe equals operator) in mysql instead of =?
negative_passages.docid: 36270
negative_passages.text: Nullable type issue with ?: Conditional Operator
negative_passages.docid: 127005
negative_passages.text: ' ... != null' or 'null != ....' best performance?
negative_passages.docid: 154567
negative_passages.text: difference between null != something and something != null
negative_passages.docid: 15097
negative_passages.text: Is there any difference between IS NULL and =NULL
negative_passages.docid: 27219
negative_passages.text: Is there any difference between type? and Nullable?
negative_passages.docid: 94839
negative_passages.text: Check whether a string is not null and not empty
negative_passages.docid: 69607
negative_passages.text: Do you use NULL or 0 (zero) for pointers in C++?
negative_passages.docid: 2772
negative_passages.text: Is there a "null coalescing" operator in JavaScript?
negative_passages.docid: 37132
negative_passages.text: In either C or C++, should I check pointer parameters against NULL/nullptr?
negative_passages.docid: 50187
negative_passages.text: Which "if" construct is faster - statement or ternary operator?
negative_passages.docid: 50081
negative_passages.text: When should I use nil and NULL in Objective-C?
negative_passages.docid: 98908
negative_passages.text: Is it good practice to set variables to null when they are no longer needed?