Questions tagged [imperative-programming]

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Is declarative programming just imperative programming 'under the hood'?

From my understanding, in declarative programming, programmer only need to define the end result, but not how to compute it. But for execute that said function, the function must be pre-defined by the ...
Loc's user avatar
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0 votes
1 answer

How are asynchoronous problems handled with imperative programming?

Context To level set, I've been working with OOP and FP for my whole career, so my experience with the imperative paradigm is limited. The team I joined is made up of very senior (20+ years xp) ...
Pete's user avatar
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3 votes
5 answers

Is assignment declarative or imperative?

On Wikipedia, the article Programming paradigms defines declarative as a paradigm in which the programmer merely declares properties of the desired result, but not how to compute it; imperative as a ...
Géry Ogam's user avatar
7 votes
3 answers

Functional architecture with lots of I/O

I'm learning about "Functional Core, Imperative Shell" as espoused by Gary Bernhardt in his talk about "Boundaries". In reality, it seems like these ideas have been known for a ...
Maletor's user avatar
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1 answer

Imperative parallels to Haskell's Monad operations

Would it be (mostly) correct to say that the following are the parallels to the Haskell Monad operations in the imperative world? Monad's >> ~ C/C++/JavaScript/etc. , operator do expressions ~ ...
P Varga's user avatar
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14 votes
6 answers

Is "Low Code" declarative by default?

Something that has really be getting under my skin recently is that Salesforce uses the term "Declarative Development" to mean "Low Code" or "visual code". For example, this article explains the ...
NSjonas's user avatar
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4 votes
1 answer

Is a generic data structure customary for use in a self contained program, or can I duplicate source files?

I have a project that does some Dijkstra searches on a graph, I implemented a red-black tree and priority queue that I use for the nodes, however I also need the same data structures for other things ...
Materia Gravis's user avatar
1 vote
2 answers

What is the difference in the implementation of a monad in a purely functional language with respect in an imperative language?

For a long time, the use of these Monad structures has been restricted to a very small circle of languages, many of them purely functional (mainly due to problems related to the management of the IO). ...
Jack Rock's user avatar
12 votes
4 answers

Why usage of assignment operator or loops discouraged in functional programming?

If my function meets the two requirements listed below, I believe that the function Sum returns the summation of the items in a list, where item evaluates as true for a given condition. Doesn't this ...
rahulaga-msft's user avatar
11 votes
3 answers

Do functional programming languages disallow side effects?

According to Wikipedia, Functional programming languages, that are Declarative, they disallow side effects. Declarative programming in general, attempts to minimize or eliminate side effects. Also, ...
codebot's user avatar
  • 221
4 votes
2 answers

Dynamic dispatch with captured data in C?

I'm trying to reconcile my object-oriented/functional mind with programming in a language with C. Let's say I want to achieve dynamic dispatch in C, say I want to have a collection of tasks to execute....
Phoenix's user avatar
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4 votes
1 answer

Can heavy use of the service pattern substitute pure functions without losing benefits?

There are huge benefits to pure functions in functional programming, but can the same benefits be obtained in imperative programming with heavy use of the service pattern? I ask because I want to ...
clinux's user avatar
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1 vote
0 answers

What are the types of tasks for which Functional Programming paradigm really wins over imperative one? [closed]

During its evolution C# gradually gets more and more features which belong to functional paradigm. Subjectively these features allow (at least me) to be more productive, fluent and write maintainable ...
Pavel Voronin's user avatar
3 votes
2 answers

What is the most idiomatic way to iterate collection with different action for first element?

Sometimes we meet a situation where we should iterate (or map) over a collection, applying the same procedure (function) for all elements except the first one. The simplest example is finding the max ...
ov7a's user avatar
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3 votes
3 answers

Declarative programming for deterministic real time control

Let's say you want control a motor in real time. Normally you would use a microcontroller or PC with e.g. c-programming language. So you would use an imperative approach. You tell the microcontroller ...
CPA's user avatar
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5 votes
2 answers

Is declarative programming overrated? [closed]

I've been programming for years with primarily-imperative languages (C++, C#, javascript, python), but have recently experimented with some functional langauges (Lisp, Haskell) and was excited to try ...
QuadrupleA's user avatar
57 votes
4 answers

Development process used for the code on Apollo 11 missions?

The Apollo missions had technology no more complicated than a pocket calculator. From link here, there's an information about Apollo Guidance Computer (AGC) The on-board Apollo Guidance Computer (...
Josip Ivic's user avatar
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11 votes
2 answers

Functional programming, compared to the process of a computer [duplicate]

In functional programming, it is considered bad practice (at least from my observations) to use state changes. Since computers operate in an imperative-language-like matter (performing one operation ...
sneelhorses's user avatar
18 votes
5 answers

What makes functional programming languages declarative as opposed to Imperative?

On many articles, describing the benefits of functional programming, I have seen functional programming languages, such as Haskell, ML, Scala or Clojure, referred to as "declarative languages" ...
ALXGTV's user avatar
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3 votes
1 answer

Advantages of the imperative style over the functional style [duplicate]

There's a lot of hype over functional languages right now, and I've spent the last year studying Haskell as my intro to FP as a result. Seeing the advantages FP provides is easy (such as referential ...
Josiah's user avatar
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1 vote
1 answer

How do I enforce 'referential transparency' in this program?

Below is the python program written to follow the rule of thumb in functional programming. The simple rule of thumb is: if you can replace any expression, sub-expression or subroutine call with the ...
overexchange's user avatar
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8 votes
5 answers

How to structure a loop that repeats until success and handles failures

I am a self-taught programmer. I started programming about 1.5 years ago. Now I have started to have programming classes in school. We have had programming classes for 1/2 year and will have another 1/...
wefwefa3's user avatar
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0 votes
1 answer

How to encourage to write pure functions in imperative environments? [closed]

In functional programming languages, a developer is always cautious about writing pure functions. Some functional languages simply do not allow impure functions, and some other functional languages ...
Gulshan's user avatar
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3 votes
2 answers

Cognitive Modeling Programming vs Imperative Programming vs Declarative Programming

I'm reading this article by John Funge about Cognitive Modeling for Computer Games: And some further detailed reading about ...
achie's user avatar
  • 39
2 votes
5 answers

Is it possible to use functional paradigm in imperative languages?

If I understand the concept correctly the goal, which functional languages are trying to achieve is to eliminate any side effects from functions and to eliminate a state. The rationale behind this is ...
mip's user avatar
  • 165
2 votes
3 answers

Inheritance in imperative programming

My first introduction to programming was Java, which was horrible so I learnt Actionscript3 which was nice... "The point is" OOP was my introduction to programming where by I went on to gain a career ...
Flosculus's user avatar
  • 183
4 votes
1 answer

how to enumerate/generate all possible binary trees from N leaves and N-1 nodes?

I am trying to implement the 24 Game in ansi C. This game goes as follows: For a list of four given numbers, try to find a solution involving these four numbers, that, using addition(+), subtraction(-...
Qqwy's user avatar
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40 votes
4 answers

What is referential transparency?

I have seen that in imperative paradigms f(x)+f(x) might not be the same as: 2*f(x) But in a functional paradigm it should be the same. I have tried to implement both cases in Python and Scheme, ...
asgard's user avatar
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1 vote
1 answer

Mixing declarative & imperative code (Implicit 'unit tests' ?) [closed]

Well I'm no expert, but as a student, I'm curious about languages and their design patterns / goals. I'd like to know, whether there are any points I miss in the following examples, and why ...
kdani's user avatar
  • 121
10 votes
5 answers

Can a pure-functional solution to this problem be as clean as the imperative?

I have an exercise in Python as follows: a polynomial is given as a tuple of coefficients such that the powers are determined by the indexes, e.g.: (9,7,5) means 9 + 7*x + 5*x^2 write a function to ...
user1358's user avatar
  • 341
13 votes
1 answer

Why is imperative programming preferred over functional programming? [closed]

Background: I am proponent of functional programming who works at a VB.NET shop where the prevailing mental model is imperative programming. Being that foundation of our system is WinForms I can ...
Mario T. Lanza's user avatar
6 votes
2 answers

Differences between imperative-language and functional-language debuggers

Up to now I have always worked with imperative languages like Pascal, C, C++, Java in a production environment, so I have experience with debuggers for these languages (Turbo Pascal, Turbo C, GDB / ...
Giorgio's user avatar
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5 votes
2 answers

Does the structured programming definition only consider imperative programming?

Does the structured programming definition only consider imperative programming? By this I mean does the definition of structured programming automatically exclude functional programming (in the most ...
lucidquiet's user avatar
13 votes
4 answers

Example of where Functional Programming is Superior to Imperative or Object-Oriented Programming? [duplicate]

Possible Duplicate: Which problems domains are more suited to functional programming solutions I've been reading about functional programming. I've been using mostly recently, and I ...
Vivian River's user avatar
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113 votes
4 answers

What's The Difference Between Imperative, Procedural and Structured Programming?

By researching around (books, Wikipedia, similar questions on SE, etc) I came to understand that Imperative programming is one of the major programming paradigms, where you describe a series of ...
Daniel Scocco's user avatar