http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53086
kargl at gcc dot gnu.org changed:
What |Removed |Added
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CC| |kargl at gcc dot gnu.org
--- Comment #4 from kargl at gcc dot gnu.org 2012-04-23 16:09:46 UTC ---
(In reply to comment #3)
> If it is valid to have such "trailing array" in a COMMON then we need to fix
> array sizes for them (that's possible).
>
> Is this valid fortran? If so this is a Frontend bug as well - -fbounds-check
> triggers after all.
>From F2003 standard one finds on page 99:
The form variable-name (explicit-shape-spec-list) declares variable-name
to have the DIMENSION attribute and specifies the array properties that
apply.
My interpretation is that
COMMON /FMCOM / X(1)
declares X to have 1 element while
PARAMETER (MEMSIZ= 80 000 000)
COMMON /FMCOM / X(MEMSIZ)
has 80000000 elements. The above appears to be a common
F77 idiom for "dynamic" memory management where the
programmer is abusing the storage association of element
x(1).
