terminology

问题 What is voluntary preemption? I only know that it's a concept in scheduling. 回答1: It depends a little bit on the OS. In some RTOS, voluntary preemption means that the running process declares points where it can be preempted (where otherwise it would run until completion). Another way to think of this variant is that of a yield in a coroutine . This is in contrast to most desktop OS where the kernel determines preemption. Keep in mind that some RTOS do not have the concept of a "user mode".

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 3 years ago . I wonder if can I say that a constructor is a special case of a method ? 回答1: You can say anything. Whether anyone will disagree with you depends on the context. Some language communities and standards define things that way. More elaborately, it depends on what you mean by a

问题 Let's say I have a class Derived which derives from class Base whereas sizeof(Derived) > sizeof(Base) . Now, if one allocates an array of Derived like this: Base * myArray = new Derived[42]; and then attempts to access the n -th object using doSomethingWithBase(myArray[n]); Then this is might likely (but not always) cause undefined behaviour due to accessing Base from an invalid location. What is the correct term for such an programming error? Should it be considered a case of object slicing?

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . I've seen such words as: A policy defines the learning agent's way of behaving at a given time. Roughly speaking, a policy is a mapping from perceived states of the environment to actions to be taken when in those states. But still didn't fully understand. What exactly is a policy in reinforcement learning? 回答1:

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . I've seen such words as: A policy defines the learning agent's way of behaving at a given time. Roughly speaking, a policy is a mapping from perceived states of the environment to actions to be taken when in those states. But still didn't fully understand. What exactly is a policy in reinforcement learning? 回答1:

问题 I read this term a lot in blogs about haskell and functional programming (specially in sigfpe's blog) but I don't have a clue about what it means. I get away with not knowing it most of the times, but I probably would have understood the texts a lot better if I knew. Google didn't help me. I get lost in the technical stuff. Also the non-technical meaning of the world ("turning the abstract concrete") doesn't help me understand what it practically means to reify something in code. I'm kinda

问题 I read this term a lot in blogs about haskell and functional programming (specially in sigfpe's blog) but I don't have a clue about what it means. I get away with not knowing it most of the times, but I probably would have understood the texts a lot better if I knew. Google didn't help me. I get lost in the technical stuff. Also the non-technical meaning of the world ("turning the abstract concrete") doesn't help me understand what it practically means to reify something in code. I'm kinda

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 3 years ago . What is difference between Interaction design, Visual Design, Web design, UX design, UI design, UI development? BTB, link found below answered for UI Vs UX. https://stackoverflow.com/questions/1334496/difference-between-ui-and-ux 回答1: Maybe just a shorter version: Graphic/Visual

问题 What is the reasoning behind the naming of "lvalue" and "rvalue" in C/C++ (I know how they function)? 回答1: The standard mentions this: An lvalue (so called, historically, because lvalues could appear on the left-hand side of an assignment expression) [...] An rvalue (so called, historically, because rvalues could appear on the right-hand side of an assignment expression) [...] That is, an lvalue was something you could assign to and an rvalue was something you could assign from. However, this

问题 Like two overlapping line segments, we can find infinite points of intersection. To enumerate all these points might not make sense, and we might just want to present that this collection is infinity. Floating point numbers have defined NegativeInfinity and PositiveInfinity . A number which represents count or ordinal seem not necessary to use floating point numbers, however, integers are not defined something to represent infinity. So I tried to implement an infinite enumerable. But I