carmack | John Carmack Archive | Document Editor library

by floodyberry PHP Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(6)Vulnerabilities Install Support

kandi X-RAY | carmack Summary

carmack is a PHP library typically used in Editor, Document Editor applications. carmack has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

WORKING WITH THE SUB-PAGES AND DATA FILES.

Support

Quality

Security

License

Reuse

Support

carmack has a low active ecosystem.

It has 43 star(s) with 20 fork(s). There are 8 watchers for this library.

It had no major release in the last 6 months.

carmack has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of carmack is current.

Quality

carmack has 0 bugs and 0 code smells.

Security

carmack has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

carmack code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

carmack does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

carmack releases are not available. You will need to build from source code and install.

carmack saves you 759 person hours of effort in developing the same functionality from scratch.

It has 1749 lines of code, 46 functions and 36 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

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carmack Key Features

No Key Features are available at this moment for carmack.

carmack Examples and Code Snippets

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Community Discussions

Trending Discussions on carmack

How effectively can function-local lambdas be inlined by C++ compilers?

Python coding trouble

What is the point implementing custom math functions in C++ (like SQRT)?

pg-promise. Query works when using raw query, but not when using helpers

Optimizing rendering through packing vertex buffers

Find duplicates in a list of tuples

QUESTION

How effectively can function-local lambdas be inlined by C++ compilers?

Asked 2019-Mar-28 at 19:52

Background

As an organizational strategy, I like to define function-local lambdas in complicated functions. It's good for encapsulating multi-step logic, repeated operations, etc. (the sorts of things that functions are good for in general), but without creating something that'll be visible outside of the scope where it's used. It's kind of a synthesis of/alternative to the styles John Carmack lays out in his essay on the merits of inlining code in that it keeps everything neatly bottled up in the function it's intended to be used in while also giving a (compiler-recognized) name to document each block of functionality. A simple, contrived example might look like this (just pretend there was actually something complex enough going on here to merit using this sort of style):

...

ANSWER

Answered 2019-Mar-28 at 19:52

Yes.

Modern compilers use "static single assignment" (SSA) as an optimization pass.

Each time you assign to a value or modify it, a conceptually different value is created. Sometimes these conceptually different values share identity (for the purpose of pointers-to).

Identity, when you take the address of something, is the thing that gets in the way of this.

Simple references are turned into aliases for the value they reference; they have no identity. This is part of the original design intent for references, and why you cannot have a pointer to a reference.

Concretely:

Source https://stackoverflow.com/questions/55405659

QUESTION

Python coding trouble

Asked 2018-Sep-10 at 04:21

For homework, I am supposed to code a recipe that takes the input of the deserts and spit out how much of the ingredients would be required. I'm still new and keep getting this error code, but could possibly be wrong altogether?

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ANSWER

Answered 2018-Sep-10 at 03:54

cakes = int(input('How many cakes? ==> '))
donuts = int(input('How many dozens of donuts? ==> '))
cookies = int(input('How many dozen cookies? ==> '))

cake_eggs = 2
cake_butter = .5
cake_sugar = 1
cake_flour = 1.5

cookie_eggs = 2
cookie_butter = 2.5
cookie_sugar = 2
cookie_flour = 8

donuts_eggs = 3
donuts_butter = .25
donuts_sugar = .5
donuts_flour = 5

total_butter = cake_butter*cakes + cookie_butter*cookies + donuts_butter*donuts
total_eggs = cake_eggs*cakes + cookie_eggs*cookies + donuts_eggs*donuts
total_sugar = cake_sugar*cakes + cookie_sugar*cookies + donuts_sugar*donuts
total_flour = cake_flour*cakes + cookie_flour*cookies + donuts_flour*donuts

print('You need to order : \n' + 'Eggs = ' + str(total_eggs)+'\n' + 'Butter = ' + str(total_butter) +'\n' + 'Sugar : ' + str(total_sugar) + '\n' + 'Flour = ' + str(total_flour) )

Source https://stackoverflow.com/questions/52250577

QUESTION

What is the point implementing custom math functions in C++ (like SQRT)?

Asked 2018-Aug-22 at 12:15

In the past few weeks I was wondering what is the point that people trying to re-invent the wheel and spend hours to write their own sqrt function for example. The built-in version is optimized well, precise and stable enough.

I am speaking about the Carmack-style Square Root for example. What is the point? It will lose precision during the approximation and it uses casting.

Intel style SSE Square Root was giving precise results, but was slower in my calculations than the standard SQRT.

By average, all the above tricks were beaten by far the standard SQRT. So my question is, what is the point?

My PC has the below CPU:

Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz.

I've got the following results for each method (I've fixed the performance test according to the below suggestion by the helpful comment, thanks for that n.m.):

(Please keep in mind that if you're using approximation like Newton method, you'll lose precision so you must align your calculation accordingly.)

You can find the source code below for reference.

...

ANSWER

Answered 2018-Aug-20 at 11:15

For fun and profit?

Based on your question, there is no reason to do so, but if you want to learn a language, it is recommended to solve mathematical problems, because they rely on integers/floats (which are primitives in (mostly) any language) and the algorithms are well documented.

In "real" code, one should use the provided methods by libc as long as you have one. Embedded platforms usually lack of a libc or roll their own, so you have to implement your own.

Source https://stackoverflow.com/questions/51929504

QUESTION

pg-promise. Query works when using raw query, but not when using helpers

Asked 2018-Aug-14 at 23:27

I get an error when I use the below code:

...

ANSWER

Answered 2018-Aug-14 at 23:27

Try it like this:

Source https://stackoverflow.com/questions/51849127

QUESTION

Optimizing rendering through packing vertex buffers

Asked 2018-Jan-25 at 14:39

John Carmack recently tweeted:

"Another outdated habit is making separate buffer objects for vertexes and indexes."

I am afraid I don't fully understand what he means. Is he implying that packing all 3D data including vertex, index, and joint data into a single vertex buffer is optimal compared to separate buffers for each? And, if so, would such a technique apply only to OpenGL or could a Vulkan renderer benefit as well?

...

ANSWER

Answered 2018-Jan-24 at 07:26

I think he means there's no particular need to put them in different buffer objects. You probably don't want to interleave them at fine-granularity, but putting e.g. all the indices for a mesh at the beginning of a buffer and then all the vertex data for the mesh following it is not going to be any worse than using separate buffer objects. Use offsets to point the binding points at the correct location in the buffer.

Whether it's better to put them in one buffer I don't know: if it is, I think it's probably ancillary things like having fewer larger memory allocations tends to be a little more efficient, you (or the driver) can do one large copy instead of two smaller ones when copies are necessary, etc.

Edit: I'd expect this all to apply to both GL and Vulkan.

Source https://stackoverflow.com/questions/48415530

QUESTION

Find duplicates in a list of tuples

Asked 2017-Nov-20 at 12:30

You are given information about users of your website. The information includes username, a phone number and/or an email. Write a program that takes in a list of tuples where each tuple represents information for a particular user and returns a list of lists where each sublist contains the indices of tuples containing information about the same person. For example:

...

ANSWER

Answered 2017-Nov-20 at 07:19

I think we can simplify this using sets:

Source https://stackoverflow.com/questions/47384490

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install carmack

You can download it from GitHub.
PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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