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From: dave@ur-helheim.UUCP (Dave Carlson)
Newsgroups: net.lang.f77
Subject: arrays, anyone?
Message-ID: <390@ur-helheim.UUCP>
Date: Fri, 30-Aug-85 10:41:40 EDT
Article-I.D.: ur-helhe.390
Posted: Fri Aug 30 10:41:40 1985
Date-Received: Sat, 31-Aug-85 17:59:17 EDT
Reply-To: dave@ur-helheim.UUCP (Dave Carlson)
Distribution: na
Organization: U. of Rochester, EE Dept.
Lines: 26

Given a dimensioned fortran array A(50,300), I will set element A(10,100)=666,
just so a unique value is present.  Now I pass the array to a c program via
the argument list.  Given the column/row major differences, I can address the
fortran element A(10,100) as *(apntr+9*300+99) and get the correct answer.  
The hassle with this is that the dimensionality of the array must be known to
the c program, ie. 300 must be known.  Now, in C 2-d arrays are simply an array
of pointers to a linear array.  My question is can I access the fortran array
above as a double indirection + offset, as I would a C array?  Is there any way
of accessing the array that does not need to know the dimensions to get the 
offset?  [Suggestions like 'do it in fortran' are not needed--thanks!!]

thanks in advance.

"The Faster I Go the Behinder I Get"
--Lewis Carroll

Dave Carlson

{allegra,seismo,decvax}!rochester!ur-valhalla!dave
-- 
"The Faster I Go the Behinder I Get"
--Lewis Carroll

Dave Carlson

{allegra,seismo,decvax}!rochester!ur-valhalla!dave