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passing IDL string to Fortran90? [message #48503]

Fri, 28 April 2006 00:17

biophys
Messages: 68
Registered: July 2004

Member

Hi, Folk

I've been using quite often with call_external() to let F90 do the
number crunching. And I'm happy to see it speeds my data processing
quite a lot. Recently I found that F90 loads binary data from file 3~4
times faster than IDL. However it seems clueless to me how to pass a
IDL string to Fortran90. Can anybody here give me some hints? Thanks a
lot!

bp

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Re: passing IDL string to Fortran90? [message #48583 is a reply to message #48503]

Fri, 28 April 2006 12:38

biophys
Messages: 68
Registered: July 2004

Member

Ok, I came up with a not so decent solution to my problem. A little
silly, but it works!

In IDL I pass the string, which is actually a filename, as two
variables as byte(filename) and strlen(filename) with type integer*1
and integer*4 and in fortran convert it back to char*(*) with the
intrinsic char() function.

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