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From: isaac on 26 Apr 2010 06:36
is it possible to call F90 subroutine from a f77 code..??
From: Arjen Markus on 26 Apr 2010 07:26
On 26 apr, 12:36, isaac <davidbh...(a)gmail.com> wrote:
> is it possible to call F90 subroutine from a f77 code..??

Yes, but you need to compile everything with a Fortran 90 compiler.
Which esentially turns the question into a trivial one: Almost all
FORTRAN 77 code is valid Fortran 90.
So if you compile the various source files with a Fortran 90 compiler,
there is no
problem whatsoever.

But perhaps you have something else in mind?

Regards,

Arjen
From: robin on 26 Apr 2010 20:22
"isaac" <davidbhatt(a)gmail.com> wrote in message
news:0d4f01ad-cbd9-4de8-b38c-bd0c3c3d0a7a(a)b39g2000prd.googlegroups.com...
| is it possible to call F90 subroutine from a f77 code..??

Depends if you are using an F77 compiler or an F90 compiler.


From: robert.corbett on 27 Apr 2010 03:19
On Apr 26, 3:36 am, isaac <davidbh...(a)gmail.com> wrote:
> is it possible to call F90 subroutine from a f77 code..??

It depends on the compilers used. In general, mixing
codes compiled with different Fortran compilers does
not work because of differences in the associated
run-time systems. Some Fortran 90/95/2003 compilers
are compatible with earlier FORTRAN 77 compilers.

Robert Corbett
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