As per C++11 1.9 Program execution /15: Except where noted, evaluations of operands of individual operators and of subexpressions of individual expressions are unsequenced. If a side effect on a scalar object is unsequenced relative to either another side effect on the same scalar object or a value computation using the value of the same …
TL;DR: They are different; use list when in doubt. A rule of thumb: use list whenever you want the arguments to be evaluated; quote “distributes” over its arguments, so ‘(+ 1 2) is like (list ‘+ ‘1 ‘2). You’ll end up with a symbol in your list, not a function. An in-depth look at list …
The Java Tutorials has a list illustrating operator precedence. The equality operators will be evaluated first, then &&, then ||. Parentheses will be evaluated before anything else, so adding them can change the order. This is usually pretty much the same from language to language, but it’s always a good idea to double check. It’s …
Top-1 accuracy is the conventional accuracy: the model answer (the one with highest probability) must be exactly the expected answer. Top-5 accuracy means that any of your model 5 highest probability answers must match the expected answer. For instance, let’s say you’re applying machine learning to object recognition using a neural network. A picture of …
No, function parameters are not evaluated in a defined order in C. See Martin York’s answers to What are all the common undefined behaviour that c++ programmer should know about?.
new-if is a function. When a function is called, what’s the first thing that Scheme does with the argument list? It evaluates all the arguments.
what approach has worked best for you? Only one objective: pass a code inspection/peer review, with me as the reviewer, without me finding any bugs or having any other criticism, that has me asking you to redo something. Notes: I wasn’t measuring new hires’ ability to finish quickly, and didn’t encourage them to: I wanted …
Use a lookup table: import operator ops = { “+”: operator.add, “-“: operator.sub } # etc. print(ops[“+”](1,1)) # prints 2
You can use it as a sort of assertion that an expression has arithmetic type: #define CHECK_ARITHMETIC(x) (+(x)) This will generate a compile-time error if x evaluates to (say) a pointer. That is about the only practical use I can think of.
ArrayList implements the List Interface. If you look at the Javadoc for List at the contains method you will see that it uses the equals() method to evaluate if two objects are the same.