Jonas Hahnfeld schreef op za 03-07-2021 om 19:26 [+0200]:

> > Normally scm_remember_upto_here is used for that.
> 
> I think I tried, but it wasn't available. Or I mistyped, not sure.

It is defined in <libguile/gc.h>.

Actually, the special case scm_remember_upto_here_1 would be prefered,
because it theoretically is more efficient.

Greetings,
Maxime.