delegate | Embedded friendly std : :function alternative

by rosbacke C++ Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | delegate Summary

delegate is a C++ library. delegate has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

The 'delegate' is an include only embedded friendly alternative to std::function. The main purpose is to store callable things such as free functions, member functions, and functors. Once stored, the delegate can be called without knowledge of the type of stored thing. The delegate guarantees no heap allocation. In will never throw exceptions itself. Intended use is as general callback storage (think function pointer analog). The price to pay is that the delegate only stores a pointer to referenced functor objects or objects to call member functions on. The user needs to handle the lifetime of a referred object. In addition, the delegation object has a smaller footprint compared to common std::function implementations, using only 2 pointers (free function pointer and void pointer). This is small enough so that a delegate stored inside a std::function will use small object optimization on both clang and gcc. It avoids virtual dispatch internally. That results in small object code footprint and allows the optimizer to see through part of the call. This also means it fulfills the requirements for being trivially_copyable, meaning it can safely be memcpy:d between objects. See e.g. documentation on trivially copyable.

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Quality

Security

License

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Support

delegate has a low active ecosystem.

It has 37 star(s) with 5 fork(s). There are 7 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 1 have been closed. On average issues are closed in 4 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of delegate is current.

Quality

delegate has no bugs reported.

Security

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

License

delegate is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

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

Installation instructions, examples and code snippets are available.

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delegate Key Features

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delegate Examples and Code Snippets

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Community Discussions

Trending Discussions on delegate

I need to get a specific value in html with beautiful soup

Is it possible to restrict the Application API permissions of an Azure AD web application to one account?

macOS – [AVCapturePhotoOutput capturePhotoWithSettings:delegate:] No active and enabled video connection

Code inside of delegate method is not running inside of Xcode

Swift: "Type of expression is ambiguous without more context" with URLSession

Passing data to AVCapturePhoto on macOS

Pass data from tableView cell is tap to second tableView

Uninstall Imagick Version that PHP is using

Setting the delegate of a custom UITextView Delegate in Xcode

How to create Undo/Redo operations in Qt3D?

QUESTION

I need to get a specific value in html with beautiful soup

Asked 2021-Jun-15 at 22:21

maybe you guys here can help. i’m trying to get a token in a script on a website with python beautiful soup but i’m stuck at one part. the request i make is

...

ANSWER

Answered 2021-Jun-15 at 21:46

You need access throught JSON, there has an option:

Source https://stackoverflow.com/questions/67993780

QUESTION

Is it possible to restrict the Application API permissions of an Azure AD web application to one account?

Asked 2021-Jun-15 at 12:38

I'm developing an AWS Lambda function which will need to access an Outlook 365 inbox at a regular interval. I'm using Graph API for accessing the inbox.

I created a new Azure AD web application registration using the Azure Active Directory admin center.(https://aad.portal.azure.com/) When assigning API Permissions to my app, I have an option to choose between Delegated permissions and Application permissions. I can't use delegated permissions since my code will run without any user interaction.

When choosing application permissions, I can't find a way to restrict the permission to one user account. For example, if I try to give the app Mail.Read application permission, it'll get access to all mailboxes in the enterprise. Or maybe I'm interpreting the permission description incorrectly.

How do I give my app API permissions to one user's mailbox?

...

ANSWER

Answered 2021-Mar-25 at 08:20

This issue was solved by Shiva's comment, add it as the answer to close the question:

Some apps call Microsoft Graph using their own identity and not on behalf of a user. For example, the Mail.Read application permission allows apps to read mail in all mailboxes without a signed-in user.

Configuring ApplicationAccessPolicy is used to limit the app access to a specific set of mailboxes.

1.Connect to Exchange Online PowerShell

Source https://stackoverflow.com/questions/66707488

QUESTION

macOS – [AVCapturePhotoOutput capturePhotoWithSettings:delegate:] No active and enabled video connection

Asked 2021-Jun-15 at 08:38

I need a way to take photos programmatically from a macOS app and I am using AVCapturePhotoOutput to achieve this.

First I initialize the camera with

...

ANSWER

Answered 2021-Jun-15 at 08:38

As Bhargav Rao deleted my previous answer, I will add a new one.

Source https://stackoverflow.com/questions/67804126

QUESTION

Code inside of delegate method is not running inside of Xcode

Asked 2021-Jun-15 at 04:34

I have a custom UITextView class that initializes a new TextView. The delegate of this class is itself as I need code to run when the text is changed, the delegate method runs. Here is that class.

...

ANSWER

Answered 2021-Jun-15 at 04:34

// This is the instance that you should assign secondDelegate for
textField = TextView(hintText: "Type a message")

// Not this one, this one never gets added as a subview
let test = TextView()
test.secondDelegate = self

// The fix is here 
textField.secondDelegate = self
self.addSubview(textField)

Source https://stackoverflow.com/questions/67979428

QUESTION

Swift: "Type of expression is ambiguous without more context" with URLSession

Asked 2021-Jun-14 at 16:22

I am trying to implement this code below to catch PDF downloads inside a WKWebView:

...

ANSWER

Answered 2021-Jun-14 at 16:22

Inherit URLSessionDelegate protocol to your class.

Source https://stackoverflow.com/questions/67973747

QUESTION

Passing data to AVCapturePhoto on macOS

Asked 2021-Jun-14 at 11:11

Usually if you want to use AVCapturePhoto you do something like this:

...

ANSWER

Answered 2021-Jun-14 at 11:11

I think the best and easiest method is to use some other object as a delegate for the photo capture and also always create a new delegate instance for each capture action. This way you can pass additional data to the delegate object on init that you can use in the photoOutput(_:didFinishProcessingPhoto:) method.

I can highly recommend checking out the AVCam sample project from Apple. There they are doing exactly that.

Source https://stackoverflow.com/questions/67968754

QUESTION

Pass data from tableView cell is tap to second tableView

Asked 2021-Jun-14 at 08:17

I'm trying to pass data from a tableView when the cell is tap to a detailTableView. I'm not getting any errors when the detail tableView is loaded. The segue is being performed, however, the tableView remains blank. My goal to add the color to the textLabel in the cell and add the zord in the detailTextLabel within the same cell. Can someone tell me what I'm doing wrong

...

ANSWER

Answered 2021-Jun-14 at 08:17

May be order here matters performSegue should be before deselectRow for if let index_path = self.table_View.indexPathForSelectedRow { to have a value

Source https://stackoverflow.com/questions/67966703

QUESTION

Uninstall Imagick Version that PHP is using

Asked 2021-Jun-14 at 02:30

I installed Imagick through apt-get install. However the version it installed was old (6.9.7) and does not have all the delegates I need built in.

So I thought I uninstalled it using apt-get remove --purge imagemagick and reinstalled it from source.

Currently identify -version gives me the correct version I just installed (6.9.12) however php -r "print_r(Imagick::getVersion());" still shows v 6.9.7.

...

ANSWER

Answered 2021-Jun-14 at 00:46

sudo apt-get purge package-name

Source https://stackoverflow.com/questions/67962373

QUESTION

Setting the delegate of a custom UITextView Delegate in Xcode

Asked 2021-Jun-13 at 23:41

I have a class that creates a custom UITextView and initializes it with hint text. The problem that I am having is that when I try to set the delegate of the UITextView inside of the initializer, the delegate functions are not called. I am also not completely sure if the textView class should be the delegate. Below is the custom UITextView class:

...

ANSWER

Answered 2021-Jun-13 at 21:49

My guess is that you aren't actually calling the initializer that you mean to be.

For example, if you call TextView(), your convenience init will not be called. It will, however, if you call TextView(hintText: "") or any other variations of the initializer that you've created.

Secondly, although it's not directly related to the above issue, I question why you're creating another TextView and assigning it to be the delegate. Why not just assign the delegate to self?

Source https://stackoverflow.com/questions/67962594

QUESTION

How to create Undo/Redo operations in Qt3D?

Asked 2021-Jun-13 at 22:49

I created some entities using qt3d in QML. For example, this code shows a Scene3D element that declares RootEntity which is another QML element that contains the scene graph:

...

ANSWER

Answered 2021-Jun-13 at 17:22

One approach is to maintain a global list of Qt.vector3d elements and use it to record the position of the spheres that are removed with the "Undo" operation:

When the user hits CTRL+Z, create a new Qt.vector3d object to store the position of the last sphere rendered (that is, the one that was last appended to entityModel) and add that position to the global list of 3d vectors;
Then, to remove a sphere from the screen, call entityModel.remove() with the index of the sphere that needs to be erased;

The "Redo" operation simply does the opposite:

When the user hits CTRL+Y, the last element of the global list of 3d vectors holds the location of the lastest sphere removed: append this position to entityModel so the sphere can be rendered again;
Then, remember to erase this position from the global list so the next Undo operation can render a different sphere;

RootEntity.qml:

Source https://stackoverflow.com/questions/67956066

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

Vulnerabilities

No vulnerabilities reported

Install delegate

clone the repo.
Add include path <repo_root>/include
In program '#include "delegate/delegate.hpp"'
Use the 'delegate' template class.

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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