pg | Postgres is good —— Vonng 关于PostgreSQL应用开发，监控管理 与 内核架构 的 | SQL Database library

Here since there is no func, so during the substitution of the template argument(s) in the return type of the function template, we get substitution failure and due to SFINAE this function template is not added to the set. In other words, it is ignored.

Thus the call timer(5); uses the ordinary function timer since it is the only viable option now that the function template has been ignored. Hence the program compiles and gives the output:

Found the problem.
I was installing pandas_profiling, and this package updated pyyaml to version 6.0 which is not compatible with the current way Google Colab imports packages.
So just reverting back to pyyaml version 5.4.1 solved the problem.

For more information check versions of pyyaml here.
See this issue and formal answers in GitHub

##################################################################
For reverting back to pyyaml version 5.4.1 in your code, add the next line at the end of your packages installations:

You should have those two indexes to speed up your query :

You are using PostGreSQL 14, aren't you ?

Because with postgres 13 and before, this should work, see the test result in dbfiddle.

And I confirm that this doesn't work with postgres 14, see the test result in dbfiddle.

The reason is explained in the PostGres 14 manual :

User-defined objects that reference certain built-in array functions along with their argument types must be recreated (Tom Lane)

Specifically, array_append(), array_prepend(), array_cat(), array_position(), array_positions(), array_remove(), array_replace(), and width_bucket() used to take anyarray arguments but now take anycompatiblearray. Therefore, user-defined objects like aggregates and operators that reference those array function signatures must be dropped before upgrading, and recreated once the upgrade completes.

To make it working, you can do instead :

First of all, the message about DidYouMean is a deprecation warning not an error, it doesn't break your app. It means that usage of DidYouMean::SPELL_CHECKERS is deprecated and will be removed in a future version of ruby. In this case in Ruby 3.3. You shouldn't worry about it until you use versions that are lower than 3.3. It's not your code that triggers the warning. It comes from a gem named Thor. The issue was solved in thor version 1.2.0. You can update the gem by calling bundle update thor.

The actual error comes from the bootsnap gem:

This error is reported not only from Flutter developers, but also from Unity (https://forum.unity.com/threads/getting-an-odd-error-in-internal-android-build-after-updating-iap.1104352/ and https://forum.unity.com/threads/error-when-submitting-app-to-google-play.1098139/) and in my case - for a native android app.

We first got this error 6 months ago and applied the fix that was suggested by the unity guys:

I encountered the exact same problem and just put typescript in dependencies, not devDependencies.

It worked after that, but cannot assure that it is due to this change (since I have no proof of that).

Dereferencing and Casting Void Ptr (Learn C Programming, Jeff Szuhay)

'with casting, we can now go [...]'

The question is - can we really?

Yes, but the shown code doesn't do any dereferencing. Well, it tries to dereference a void* and cast the result to int. That's not how it should be done. You must first cast to int* and then dereference that int*.

One easy way to create this error is doing this: