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Document use of calln in C code in internals.texi

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* doc/lispref/internals.texi
(Writing Emacs Primitives): Don't recommend `call0`, `call1`, etc.
Instead recommend `calln`, which covers all of those use cases.
This commit is contained in:
Stefan Kangas 2025-01-19 12:44:05 +01:00
parent 2fd72a6ed3
commit 7362f9f75d
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doc/lispref/internals.texi
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@ -1154,9 +1154,9 @@ one-dimensional array containing their values. The first Lisp-level
argument is the Lisp function to call, and the rest are the arguments to
pass to it.
The C functions @code{call0}, @code{call1}, @code{call2}, and so on,
provide handy ways to call a Lisp function conveniently with a fixed
number of arguments. They work by calling @code{Ffuncall}.
The C macro @code{calln} is a convenient way to call a Lisp function
without having to specify the number of arguments. It works by calling
@code{Ffuncall}.
@file{eval.c} is a very good file to look through for examples;
@file{lisp.h} contains the definitions for some important macros and