[bertylicious]

Nice! That's (seems) so simple yet also so very effective. Shouldn't other memory-managed languages be able to profit from this as well?

[KolmogorovComp]

It’s a very well known pattern, as someone else mentioned it’s used in CPP in smallstring, Rust smallvec, C usually hand rolled etc.

[lionkor]

C# has `stackalloc`

[bertylicious]

But that requires an explicit declaration and isn't done automatically under the hood, or am I missing something?

[Smaug123]

The JIT does this automatically in some cases as of .NET 10 (https://learn.microsoft.com/en-us/dotnet/core/whats-new/dotn...).