Re: restated question about externals
On 2005-10-04 11:42:09 -0300, "Jugoslav Dujic" <jdujic@xxxxxxxxx> said:
apm wrote:
| Does the standard in some direct, indirect or convoluted manner require that
| the caller of an EXTERNAL maintain the stack?
No.
The standard does not even know what stack is. It wouldn't surprise me
if there was a Fortran for stackless machines.
Most early Fortrans were based on static allocation and that even included
the aguement lists and return addresses. If you inadvertently had a recursive
call there was no way back as the return would always be to one self (or
the daisy chain). Stacks were a new fangled thing associated with the
minicomputers like the various PDPs. Which as was recently noted were
not computers to fool the bean counters and paper pushers.
CVF has (had?) the default calling convention STDCALL, where the callee
cleans the stack. IVF (and possibly others) have that as an option. If the
compiled code is standard-conforming, the stack cleaning mechanism doesn't
matter.
| Fortrans I've used seem to work this way. I'd feel better if it in some way
| were required by the standard.
My condolence :-).
.
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... | the caller of an EXTERNAL maintain the stack? ... The standard does not even know what stack is. ... if there was a Fortran for stackless machines. ...
(comp.lang.fortran) |
|
