Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
Hi there: I am trying a translate a bunch of source code written in IDL into my own routines in C. I have no prior experience in IDL though most of the codes are pretty transparent to me. However, I have two particular structures in the code that I don't quite resolve. The first one is the function "where" which takes two parameters and return one result type. What does it do? And what is the structure of the result type? The other feature is that some of the parameters declared at the beginning of the function are initialized with a '=' sign and within the function the result is returned. Does this mean the parameters are reference passed? For instance: MY_FUNC, data, pre_data=beta ..... Thank you for your help in advance Regards P.S. please email to me since I don't read this group very often