miniMAL | Implemented in < 1 KB | Interpreter library

I have a comment section on my website and each message have its created_at date time. After fetching it from the MariaDB database, I get a string like "2021-06-15T12:45:28.000Z" (ISO 8601). Then, I convert it to a "x minutes ago" text instead of the full date.

But then, I'm having some trouble when the date is parsed.

I have a pair of iterator, and I would like to use ranges::views::filter(some_predicate) on it (with the pipe operator). AFAIU I should first convert my pair of iterator into a view. I tried to use ranges::subrange(first, last) to do so, but I’m getting horrible error messages.

Note1: I’m using C++14 and range-v3 version 0.9.1 (the last version compatible with gcc-5.5). If the solution differs when using C++17/20 and/or when using C++20 std::ranges, I’m also interested to know what changed.

Note2: I find the documentation of range-v3 severely lacking, so I’m using cppreference.com. If you know a better documentation, I’m very interested.

EDIT:

In my real code, I’m wrapping a java-style legacy iterator (that has a next() method instead of operator++/operator*. I’m wrapping them in a C++-compatible wrapper. Then I tried to convert that wrapper into a view, and finally filter it. I reproduce a minimal example on godbolt. This use iterator_range as suggested, but it still doesn’t compile (see the second edit below).

In this minimal example, I'm adding a THREE.SphereGeometry to a THREE.Group and then adding the group to the scene. Once I've rendered the scene, I want to remove the group from the scene & dispose of the geometry.

I am new to devops. I want to install jenkins. So out of all options available to install jenkins provided in official documentation which one should I use. I am zeroed on docker or kubernetes. So parameters I am looking for decision are below.

1. portability - can be installed on any major os or cloud provider.
2. minimal changes to move to production.

I am trying to contribute to a Github Page/Jekyll site and want to be able to visualise changes locally but when I run bundle exec jekyll serve but I get this output:

I designed an App that holds a stack of layers and an active obj. When a Layer is attached to the App, the Layer tells App what an active object is. But my design causes a sigtrap when deallocating.

It cause sigtrap because the destruction of shared_ptr m_obj in App happens first which reduce the use_count to 1. Then the onDetech function gets call, setting the active shared_ptr m_obj to nullptr and reduce use_count to 0! But the layer still holds an shared_ptr.

The code below is a minimal example to reproduce. I notice my code has a reference cycle but I have no idea how to fix this except using a raw pointer for obj in the App class.

I used shared_ptr for obj in App because it makes sense to me that App has the shared ownership of obj. Should I not use shared_ptr in this case?

In my project, I've hand-rolled a tiny dialog box that can be used to pick a key and/or mouse combination, "S" or "CTRL-SHIFT-C" or something. I had it working fine in Linux and Windows, but when I went to check it on the Mac, the dialog box would only respond to mouse events.

I boiled it down to a ~30-line minimal example, which actually made it be broken in the same way, mouse events but no keyboard, on Linux. On Windows my minimal code works as expected.

I've looked at the demo code, and I feel like I'm doing pretty precisely the things they're doing, so I'm stumped, most especially by the simple code being broken on Linux. Is there some magic or secret to making key events work reliably and cross-platform?

• As of Shiny 1.5.0, we are encouraged to use moduleServer rather than callModule.
• However, it appears as though we can't pass additional parameters to moduleServer (unlike callModule).
• This is an issue because I'd like to pass the parent session as a parameter to moduleServer, so that I can correctly reference the parent session in order for updateTabsetPanel to work correctly inside a renderUI dynamic output.

This post demonstrates how to use callModule to pass the parent session into the module so that updateTabsetPanel can reference the parent session and update it accordingly. I used that approach to create a minimal example here. There are two tabPanels, and we are trying to navigate to the second via an actionLink in the first. The first_server module is called with callModule, and we are able to pass the parent session parameter as an additional argument, allowing us to reference it in the updateTabsetPanel call in first_server. Clicking the actionLink then takes us to the second module UI, as expected:

I am having a hard time understanding an error related to "could not find value for implicits" error. Here is a minimal example to highlight the error.