[Bug libfortran/77663] libgfortran/caf/single.c: four minor problems

[vehre at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77663

--- Comment #1 from vehre at gcc dot gnu.org ---
Hi David,

what SW did you use to find this?

#1, #2, #4 are covered by a patch I am doing at the moment.

I believe that the report for #3 is at least misleading. Because when the
associated memory is NULL the token of the allocatable component has to be
unset, too. I.e. it is invalid for allocatable components to be NULL while the
associated token is set. Nevertheless did the report show a logic error. The
token never would have been stored at the appropriate location, but would be
lost. The patch to come fixes this, too (hopefully).

Thanks for the report.

Regards,
Andre