tested | - just for test | Testing library

I've built my React Native app and tested and troubleshooted with my iOS devices for months. Now I'm trying to built and test the app on Android for the first time. The thing is, that I keep getting errors trying to run the Android-version of my app. After hours of debugging and troubleshooting, I tried to create a new RN project and see if that could run on my emulator and device. I got that part working and then I wanted to copy/paste the files of my existing app project into the new project.

I pasted my existing assets, styles, the source JS-files and the package.json file into the new project, ran npm install and then I ended up with the exact same error message as I had in the original project when I run react-native run-android.

The full error message is here:

The following code compiles and run with Clang (tested on 13, 14, and current git head), but not with GCC.

Discussion about this was started under this answer for quite simple question.

This simple code has unexpected overload resolution of constructor for std::basic_string:

I don't know if this is possible, but I am trying to take the image of a custom outdoor football field layout and have the players' GPS coordinates correspond to the image xand y position. This way, it can be viewed via the app to show the players' current location on the field as a sort of live tracking.

I have also looked into this Convert GPS coordinates to coordinate plane. The problem is that I don't know if this would work and wanted to confirm beforehand. The image provided in the post was for indoor location, and it was from 11 years ago.

I used Location and Google Maps packages for flutter. The player's latitude and longitude correspond to the actual latitude and longitude that the simulator in the android studio shows when tested.

The layout in question and a close comparison to the result I am looking for.

Any help on this matter would be appreciated highly, and thanks in advance for all the help.

Edit:

After looking more at the matter I tried the answer of this post GPS Conversion - pixel coords to GPS coords, but it wasn't working as intended. I took some points on the image and the correspond coordinates, and followed the same logic that the answer used, but reversed it to give me the actual image X, Ypositions.

The formula that was given in the post above:

Originally this is a problem coming up in mathematica.SE, but since multiple programming languages have involved in the discussion, I think it's better to rephrase it a bit and post it here.

In short, michalkvasnicka found that in the following MATLAB sample

In the documentation for Ord, it says

Implementations must be consistent with the PartialOrd implementation [...]

That of course makes sense and can easily be archived as in the example further down:

I work for an org that has a number of internal packages that were created many years ago. These are in the form of package zip archives that were compiled on Windows on R 3.x. Therefore, they can't be installed on R 4.x, and can't be used on Macs or Linux either without being recompiled. So everyone in the entire org is stuck on R 3.6 until this is resolved. I don't have access to the original package source files. They are lost to time....

I want to take these packages, extract the code and data, and update them for modern best practices (roxygen, GitHub repos, testthat etc.). What is the best way of doing this? I have a fair amount of experience with package development. I have already tackled one. I started a new RStudio package project, and going function by function, copying the function code to a new script file, getting and reformatting the help from the help browser as roxygen docs. I've done the same for any internal hidden functions that i could find (via pkg_name::: mostly) , and also the internal datasets. That is all fairly straightforward, but very time consuming. It builds ok, but I haven't yet tested the actual functionality of the code.

I'm currently stuck because there are a couple of standardGeneric method functions for custom S4 class objects. I am completely unfamiliar with these and haven't been able to figure out how to copy them over. Viewing the source code they are wrapped in new() with "standardGeneric" as the first argument (plus a lot more obviously), as opposed to just being a simple function definition for all the other functions. Any help with how to recreate or copy these over would be very welcome.

But maybe I am going about this the wrong way in the first place. I haven't been able to find any helpful suggestions about how to "back engineer" R package source files from a compiled version.

Anyone any ideas?

When I used g++ 5.4.0, the sample code below worked as expected, but after I updated the g++ to 10.2.0, the result was changed. I also tested the sample code on clang++ 11.0.1, and the result was the same as g++ 5.4.0.

I have searched some relevant questions but did not get a valid answer. As I know, the overload function should be matched before the template, Why does g++ 10.2.0 get a different result, and how can I resolve this?

Because the original source codes are very complex, so it is not easy to refactor them with other c++ features, could this problem be fixed with a smaller change?

The target of the sample code is using the overload function Base::operator const std::string&() to execute some special action and using the template function to execute common action.

Currently, I am learning C++ and decided just start with C++20. However, these codes are driving me crazy, since I don't think the result makes any sense.

The following code will have the sentence Valid array. printed. What I meant above is that this is not right. It shouldn't print the sentence at all, since the type I inserted in the parameter doesn't match the concept.

Tested on VS2022 Preview 3 and an online compiler with newest GCC and C++2A(GNU) arguments, generated the same results.