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j clark · Posted: Thu May 22, 2008 8:14 pm Post subject: C# and Fortran arrays

Hello, I'm back with what should be a simple question.

How do you load or store C# byte[] or int[] arrays into the Fortran equivalent? For example,

OBJECT("System.Byte[]") C_ARRAY
C_ARRAY=NEW@("System.Byte[]",256)
INTEGER(KIND=1) F_ARRAY(256)
...
DO I=1,256
C_ARRAY(I-1) ??? F_ARRAY(I)
END DO
...

If I pass F_ARRAY to the C# method, I get "No .NET Method matches..."; If I try a simple assignment ("="), I get "You cannot assign...". What, then?

Andrew · Joined: 09 Sep 2004 Posts: 232 Location: Frankfurt, Germany

Have you tried using System.Int32 or System.Int16?

j clark · Posted: Thu May 22, 2008 11:58 pm Post subject:

Actually, Andrew,

.Byte[] is what is essential since I am using .Net.Sockets methods to communicate with the remote systems and .Byte[] is the only overload to those methods.

But thanks,

Jerry

PaulLaidler · Posted: Fri May 23, 2008 9:37 am Post subject:

Try declaring F_ARRAY as CHARACTER. Then use ICHAR.

Andrew · Joined: 09 Sep 2004 Posts: 232 Location: Frankfurt, Germany

Another possible way: pass an Int32 array from the fortran

j clark · Posted: Fri May 23, 2008 1:40 pm Post subject: Thank you.

Thank you, Andrew, once again.
Works perfectly, with 16-bit integers, to boot.
I'm guessing the the compiler (correctly) objects to assigning an 8-bit integer to an unsigned byte. (Sbyte[] would probably work, but that defeats the purpose.)
And Paul, as a matter of fact I had been passing CHAR strings to C# strings for testing communications, etc. but a couple of days ago I found that I was dropping the 8th bit when converting to a C# byte[] array and I can find no method in the .Convert or .Encoding classes that work. But also, thanks.

Jerry