arb | C library for arbitrary-precision ball | Math library
kandi X-RAY | arb Summary
kandi X-RAY | arb Summary
Arb is a C library for arbitrary-precision interval arithmetic. It has full support for both real and complex numbers. The library is thread-safe, portable, and extensively tested. Arb is free software distributed under the GNU Lesser General Public License (LGPL), version 2.1 or later. Author: Fredrik Johansson fredrik.johansson@gmail.com. Bug reports, feature requests and other comments are welcome in private communication, on the GitHub issue tracker, or on the FLINT mailing list flint-devel@googlegroups.com.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of arb
arb Key Features
arb Examples and Code Snippets
public static void rotateReversal(int[] a, int k) {
ReverseArray.reverseRecursive(a, 0, k - 1);
ReverseArray.reverseRecursive(a, k, a.length - 1);
ReverseArray.reverseRecursive(a, 0, a.length - 1);
}
Community Discussions
Trending Discussions on arb
QUESTION
I am currently localizing my app, I have translates all the webpages to be opened and added the url to my arb files.
But when i call the AppLocalizations.of(context)!.actionaid
on initialUrl
i get a red underline saying Invalid constant value
Is there any way I could make this work?
Thanks guys
I have something like this:
...ANSWER
Answered 2022-Mar-24 at 00:23The problem is that you are defining your Widget tree to only contain constant values by writing const CupertinoPageScaffold
.
Since AppLocalization.of(context).actionaid
is not providing a constant value this "rule" gets violated and triggers the error.
Changing const CupertinoPageScaffold
to just CupertinoPageScaffold
or extracting the WebView
widget into a separate widget with a const constructor should do the trick.
QUESTION
This is my first time working on Adding a back-end with Active Admin. The user side of my rails app http://localhost:3000/colleges is working fine but in my admin section http://localhost:3000/admin/colleges it's bringing up the following error. I have tried some solutions from stack overflow but no answer is relating to my error so far.
...ANSWER
Answered 2022-Mar-13 at 14:18I had disabled config.active_record.migration_error = :page_load
in config/environment.rb
file, hence pending migration error could not be shown.I ran rake db:migrate:status
and some of my migrations were pending. I figured out the error was being caused by the ratyrate gem and I fixed using the following solution Ruby on Rails: ratyrate gem table already exists?.
QUESTION
I'm trying to swap tokens on uniswap unsing hardhat's mainnet fork but I'm getting this error: Error: Transaction reverted without a reason string
. And I don't really know why.
Here is my swap function:
...ANSWER
Answered 2022-Feb-17 at 06:46Weth
is different from other token, you're not able to use swapTokensForTokens
. We must use the swapEthForTokens
function instead, and you have to declare the data option separately.
so in your case we need to do:
Solidity code:
QUESTION
I've run into an issue while attempting to use SSBOs as follows:
...ANSWER
Answered 2022-Feb-10 at 13:25GLSL structs and C++ structs have different rules on alignment. For structs, the spec states:
If the member is a structure, the base alignment of the structure is N, where N is the largest base alignment value of any of its members, and rounded up to the base alignment of a vec4. The individual members of this substructure are then assigned offsets by applying this set of rules recursively, where the base offset of the first member of the sub-structure is equal to the aligned offset of the structure. The structure may have padding at the end; the base offset of the member following the sub-structure is rounded up to the next multiple of the base alignment of the structure.
Let's analyze the struct:
QUESTION
I use glTexImage2DMultiSample
with fixedsamplelocations parameter set on false. Then texels may have different samples count. How can I check samples count for a texel in the fragment shader ? Is the only solution to use textureSamples
(ARB_shader_texture_image_samples) ?
ANSWER
Answered 2022-Jan-21 at 14:34The sample count for an image is for the image, not for individual texels. So if some implementation assigns different numbers of samples to different texels, that's not something you can query. The implementation will have to behave as if it didn't do that, since all of OpenGL's APIs assume a fixed sample count for an image. This includes the APIs for reading and writing the current fragment's sample mask.
QUESTION
ARB_texture_storage is a core feature since OpenGL 4.2. The extension had been released before OpenGL 4.2. I would like to determine what is minimum OpenGL version which has to be supported by hardware to use that extension, for example glTexStorage2DARB
. The documentations says:
This extension is written against the OpenGL 3.2 Core Profile specification.
Does it mean that GPU should support at least OpenGL 3.2 ?
...ANSWER
Answered 2022-Jan-20 at 14:50ARB_texture_storage is not something that is "supported by hardware". By and large, it is an API improvement; it doesn't expose something which some GPUs can do and others cannot.
As such, in the dependencies section, the extension specification states:
OpenGL ES 1.0, OpenGL ES 2.0 or OpenGL 1.2 is required.
This represents the oldest OpenGL version with which this extension is meaningfully compatible. Of course, you are highly unlikely to find 1.2 implementations in the wild, let alone implementations that are still being supported without implementing higher GL versions.
Basically, most hardware that was/is still having its drivers maintained since the time of this extension's release will have an implementation of it. And outside of open source drivers, most of that hardware will be GL 4.x of some form.
Also, this extension does not have ARB
versions of its functions. This is a compatibility extension; it allows you to use GL 4.2 API functionality on hardware that cannot support GL 4.2 (assuming the driver is updated) without forcing you to rename functions or whatever.
QUESTION
How come the outcome to this is 'a' the if statement should completely be skipped tbh (it's falsey?). ? Being there is no str[i-1] on the first iteration, it should throw an error, but it doesn't? When i trace through the steps using ByeBug it does throw an error.. which I don't understand.
...lib/test.arb:6:in
longest_streak': undefined method
status' for [nil, nil, nil, nil, "s"]:Array (NoMethodError) from lib/test.arb:19:in `'
ANSWER
Answered 2022-Jan-16 at 20:09In Ruby, a negative index will traverse backwards. So str[-1]
will go from the end of the array, which will be a
since that's the only character in the array.
str[-1]
and str[0]
are the same thing in this instance, which is why the if
condition is evaluated, because i
is only ever 0 and 0 - 1 == -1
.
You could work around this by adding a check to your conditional
QUESTION
I'm still learning FSCheck, and recently needed a fixed collection of unique strings.
This works, but I suspect there is a more efficient way.
...ANSWER
Answered 2022-Jan-07 at 02:30It's probably more efficient to build a set that you know contains exactly N strings, like this:
QUESTION
I want to load some textures using glTexStorageXX()
, but also fall back to glTexImageXX()
if that feature isn't available to the platform.
Is there a way to check if those functions are available on a platform? I think glew.h
might try to load the GL_ARB_texture_storage
extensions into the same function pointer if using OpenGL 3.3, but I'm not sure how to check if it succeeded. Is it as simple as checking the function pointer, or is it more complicated?
(Also, I'm making some guesses at how glew.h
works that might be wrong, it might not use function pointers and this might not be a run-time check I can make? If so, would I just... need to compile executables for different versions of OpenGL?)
ANSWER
Answered 2021-Dec-31 at 21:33You need to check if the OpenGL extension is supported. The number of extensions supported by the GL implementation can be called up with glGetIntegerv(GL_NUM_EXTENSIONS, ...)
.
The name of an extension can be queried with glGetStringi(GL_EXTENSIONS, ...)
.
Read the extensions into a std::set
QUESTION
I'm using Azure computer vision with nodejs, and I would to extract text on the images, it works as expected but I'm facing some challenges : the code :
...ANSWER
Answered 2021-Nov-25 at 12:20We extract printed text with optical character recognition (OCR) from an image using the Computer Vision REST API. And a successful response is returned in JSON. You can't get a direct string output form this Azure Cognitive Service.
For the problem -
I want the output as a string and not JSON tree.
We can't directly print the ingredients like a string as seen in the image. To extract the content and display it in particular format, after you get the JSON string, parse that into a JSON object and run a loop to extract data from it. After that use the split function to get the data stored into arrays. As shown in the below snippet.
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