print_debug example uses the <> structure syntax before it has been introduced

[systemdlete]

The print_debug example does, in fact, have a link at the bottom to the structure example page. But so far, the "<>" part of the structure syntax has not yet been introduced, and the print_debug page does not explain its meaning.

Interestingly, the linked page does not use or refer to this syntax, either.

The syntax may feel familiar to C++ and other developers who have encountered templates. But being new to this, I am not sure if this syntax exactly mimics the semantics in those other languages, and I am not sure we can assume all rust learners have even used another programming language with similar syntax.

The struct example page should almost certainly introduce the <> syntax and provide instances of its use.

[marioidival]

I understand your point, but I think that RBE should be used as an auxiliary material for studies, that is, it is expected (in my opinion) that before studying using RBE, the learner has at least started the rust book.