Recent questions tagged Language

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language agnostic - Is my understanding of type systems correct?

The following statements represent my understanding of type systems (which suffers from too little hands-on ... may obfuscate errors? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - what is the difference between re-entrant function and recursive function in C?

In C I know about the recursive function but I heard about the re-entrant function. What is that? And whats the difference between them? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - What is tail-recursion elimination?

Steve Yegge mentioned it in a blog post and I have no idea what it means, could someone fill me in? Is ... same thing as tail call optimization? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language design - What is the rationale for the behavior of the 'this' keyword in JavaScript?

I am asking this from a language design point of view. So I am trying to find out What is the ... then, that makes this indispensable? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - Does anyone know what "Quantum Computing" is?

In physics, its the ability for particles to exist in multiple/parallel dynamic states at a particular point in ... changes or is autonomous? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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561 views

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language agnostic - Why Re-throw Exceptions?

I've seen the following code many times: try { ... // some code } catch (Exception ex) { ... // Do ... it's called "Caller Inform" pattern?) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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524 views

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language agnostic - What exactly is GUID? Why and where I should use it?

What exactly is GUID? Why and where I should use it? I've seen references to GUID in a lot of places, and ... this, it would be nice. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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416 views

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language agnostic - Tri-Color Incremental Updating GC: Does it need to scan each stack twice?

Let me give you a short introduction to a tri-color GC (in case somebody reads it who has never heard of it) ... the most frequent ones of all. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - Do fluent interfaces violate the Law of Demeter?

The wikipedia article about Law of Demeter says: The law can be stated simply as "use only one dot". However a ... } So does this goes together? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language design - Why is there no sub-class visibility modifier in Java?

On more than one occasion I have found myself desiring a variable visibility that is not possible in Java. I ... that I haven't considered? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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482 views

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language agnostic - Why are memory addresses are represented using hexadecimal numbers?

Whenever I see C programs that refer directly to a specific location on the memory (e.g. a memory barrier) it ... or is it just a convention? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - Is the Haversine Formula or the Vincenty's Formula better for calculating distance?

Which is better for calculating the distance between two latitude/longitude points, The Haversine Formula or ... Location.distanceBetween()). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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594 views

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language agnostic - Flow Based Programming

I have been doing a little reading on Flow Based Programming over the last few days. There is a wiki ... the advent of procedural languages. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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555 views

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language agnostic - What is ADT? (Abstract Data Type)

I am currently studying about Abstract Data Types (ADT's) but I don't get the concept at all. Can someone ... and List ADT? in simple terms? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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429 views

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language agnostic - Internationalization in your projects

How have you implemented Internationalization (i18n) in actual projects you've worked on? I took an interest in ... in real world projects. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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596 views

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language agnostic - Algorithm to calculate number of intersecting discs

Given an array A of N integers we draw N discs in a 2D plane, such that i-th disc has center in (0,i) ... that N does not exceed 10,000,000. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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545 views

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language agnostic - What's the use of metaprogramming?

I've read: Wikipedia Code Generation vs. Metaprogramming The art of Metaprogramming Metaprogramming at c2.com ... be considered metaprogramming? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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525 views

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language agnostic - Monads vs. Arrows

I'm broadly familiar with the concepts of monads and arrows as used in functional programming. I also understand ... when should I use arrows? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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665 views

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language agnostic - What is "Orthogonality"?

What does "orthogonality" mean when talking about programming languages? What are some examples of Orthogonality? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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601 views

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language agnostic - Is there any (opposite of newline) char?

Was wondering if we could print from right to left, bottom to top... I got this thought when trying to write a program ... Perl, C, C++, Java). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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623 views

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language agnostic - How do I determine size of ANSI terminal?

Standard input and output are connected to a terminal that implements ANSI escape sequences, but is of unknown ... to bottom/right command. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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583 views

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language features - What is an example of "this" assignment in C#?

Does anybody have useful example of this assignment inside a C# method? I have been asked for it once ... still interested in answer myself. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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487 views

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language agnostic - How do you return two values from a single method?

When your in a situation where you need to return two things in a single method, what is the best approach? I ... for the purpose of a return. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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473 views

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language implementation - range for integer values of chars in c++

I'm reading The C++ Programming Language and in it Stroustrup states that the int value of a char can ... implementation possibility, not 256. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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749 views

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language agnostic - Extract email and name with regex

What would be the regular expressions to extract the name and email from strings like these? [email protected] John ... ://regexr.com/?337i5) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

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language agnostic - How to find the mathematical function defining a bezier curve

Im trying to implement a bezier curve and line segment intersection test. The closest thing my searching has ... the intersection point(s). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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674 views

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language agnostic - How can Polymorphism replace an if-else statement inside of a loop?

How can polymorphism replace an if-else statement or Switch inside of a loop? In particular can it always replace an ... in this for any OOL. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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501 views

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language agnostic - Iterator to produce unique random order?

The problem is stated as follows, we have a very large number of items which are traversed through an iterator pattern ... of items and so on) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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