Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!rpi!bu.edu!snorkelwacker!spdcc!merk!alliant!linus!think!compass!worley
From: worley@compass.com (Dale Worley)
Newsgroups: comp.lang.fortran
Subject: Function calls in the middle of subroutine CALLs? -- Is it standard fortran 77 ????
Message-ID: <2388@compass.com>
Date: 9 Jul 90 15:18:48 GMT
Organization: Compass, Inc., Wakefield, MA
Lines: 23
In-reply-to: forrest@eemips.tamu.edu's message of 6 Jul 90 08:01:47 GMT

forrest@eemips.tamu.edu (Bob Forrest) writes:
>        I want to dynamically allocate memory in fortran by using
> mixed languages (C and FORTRAN).  In so doing, I need to pass
> a value contained in a variable to other routines by value instead
> of by address --   %VAL(variable_name)   under several vendors extensions to 
> Fortran 77;

A more portable solution is to pass the variable by address (that is,
call the C routine in the ordinary Fortran way), but have the C
routine fetch the value from its location.  This leaves your Fortran
completely portable and your C only somewhat less so -- fetching a
value from an address is C is easy.

> "Is it part of the FORTRAN 77 standard to be allowed to make function
> calls in the middle of a subroutine CALL?

Yes.  Unless Fortran 77 is crazy...

Dale Worley		Compass, Inc.			worley@compass.com
--
The United States has entered an anti-intellectual phase in its
history, perhaps most clearly seen in our virtually thought-free
political life. -- David Baltimore