[howtofly]

All this hassle can be avoided by using `cleanup` compiler attribute.

Manage classical C resources by auto-cleanup variables and do error-handling the normal way. If everything is OK, pass the ownership of these resources from auto-cleanup variables to C++ ctor.

Note this approach plays nicely with C++ exception, and will enter C standard in the form of `defer`.

[ranger_danger]

Yes, but now your code is no longer C or C++ standards compliant as it relies on compiler-specific attributes, if that matters to the programmer.

Unfortunately, even the Linux kernel is no longer C because they use GCC compiler extensions (and are currently discussing adding MS ones too).

[1718627440]

A kernel will make use of asm, and can't abstract over the machine, so it will always be unportable and relying on compiler extensions.