Re: [TCLCORE] CFV warning: TIP #626: Command arguments > 2^31 elements

[Jan N. <jan...@gm...>]

Op zo 6 apr 2025 om 14:48 schreef Gustaf Neumann (sslmail) <ne...@wu...>:
>
> Just for my understanding: the "string based" interface will not support 2^31+ arguments, and there will be no variant similar to the Tcl_Obj based counterparts.
> This makes the  "string based”  interface based on Tcl_CreateCommand a legacy interface. Right?

Right. For every such function call, a "const char *" array is
allocated, the string values
of all Tcl_Obj arguments are copied in there, and - when the call returns -
everything is cleaned up. This makes Tcl_CreateCommand functions less
efficient, they should be discouraged. However, I don't think we should
ever remove this interface: there are still too many extensions using it.

Deprecating an interface means that _some day_ the interface
might be removed. It is not a promise that it will be removed
in Tcl 10. That still can be decided then (which will need a TIP)

Hope this helps,
      Jan Nijtmans