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When looking at pseudocode (actually, on the Wikipedia article on A*), i came across the use of := to assign or initialize a variable. What does this mean? Is part of some kind of set notation? If it’s something complicated, how would one go about implementing this in C++ or Java? Thanks.
:=indicates assignment of a variable.:=is used when=is a test for equality (rather than the standard==seen in most modern programming languages), not an assignment. In Pascal, for instance,:=is used for assignment, and=is used to test for equality. See the “Notation” section of the assignment article for a list of notations for assignment.