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For loop illustration, from i=0 to i=2, resulting in data1=200. A for-loop statement is available in most imperative programming languages. Even ignoring minor differences in syntax, there are many differences in how these statements work and the level of expressiveness they support.
Unlike other for loop constructs, however, foreach loops [1] usually maintain no explicit counter: they essentially say "do this to everything in this set", rather than "do this x times". This avoids potential off-by-one errors and makes code simpler to read.
Specifically, the for loop will call a value's into_iter() method, which returns an iterator that in turn yields the elements to the loop. The for loop (or indeed, any method that consumes the iterator), proceeds until the next() method returns a None value (iterations yielding elements return a Some(T) value, where T is the element type).
If xxx2 is omitted, we get a loop with the test at the bottom, equivalent to a do while loop in many languages. If while is omitted, we get an infinite loop. The construction here can be thought of as a do loop with the while check in the middle. Hence this single construction can replace several constructions in most programming languages.
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If you're caught in a loop where the sign-in screen keeps reappearing after you click "Sign in," you'll need to reset the "sign-in" cookie. After entering your username on the sign-in page, click Not you? Enter your username and password. Click Sign in. If that doesn't fix the problem, try these steps and attempt to sign in after each one:
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California has become the first state to ban public schools from serving food that contains dyes found in popular snacks such as Froot Loops. The new legislation, which was signed into law by Gov ...