https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66310
--- Comment #3 from Gerhard Steinmetz <gerhard.steinmetz.fort...@t-online.de>
---
I do agree, that some extra temporary data is necessary and there
should be a practical (high) limit for something like that.
Let the helper buffers be five or ten times the amount of the
effectively written data. That's OK.
But it's not a billion times as suggested by the huge number
18446744065119617024. Something IS going wrong here.
---
Indeed, there is an actual limit at about 2^28 = 268435456 for the second
case. That's plenty enough. But the point is (sorry for being late) :
$ cat zlim_hd8m.f90
program p
character, parameter :: z = 'z'
print *, repeat(z, 268435450)
end
$ gfortran zlim_hd8m.f90
$ a.out > l
$ wc l
1 1 268435452 l
$ cat zlim_hd8p.f90
program p
character, parameter :: z = 'z'
print *, repeat(z, 268435460)
end
$ gfortran zlim_hd8p.f90
f951: out of memory allocating 18446744073441116164 bytes after a total of
430080 bytes
---
For the first test case the limit is just below 2^31.
This is really enough. No code change is needed, IMO.
Only the message "invalid memory reference" was misleading the first
time, therefore a reduction and investigation of some variations.
Thank you.
