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From: ne201ph@prism.gatech.edu (Halvorson,Peter J)
Newsgroups: comp.sys.sun
Subject: Fortran 64 bit.
Keywords: Software
Message-ID: <8197@brazos.Rice.edu>
Date: 25 May 90 19:58:36 GMT
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X-Sun-Spots-Digest: Volume 9, Issue 181, message 20

Has anyone had to port a Fortran program from a mainframe to a
SPARCstation?

The mainframe defaults to 64 bit numbers.  On the SPARC the same
statements and declarations produce 32 bit numbers.  For our current
program the extra precision of 64 bit real numbers is crucial.  Is there a
better way than going through the program line by line changing real to
real*8, and changing constants to constantd0 ( i.e. 1./3. to 1./3.d0)?
Constants are the bigger problem.

Peter Halvorson   --  Nuclear Engineering Program
Georgia Institute of Technology, Atlanta Georgia, 30332
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