Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
Re: Making an array of structures containing pointers
Kenneth P. Bowman (bowman@null.edu) writes: > I'm trying to create a data structure to store a number of variable-length > 1-D arrays that I am reading from a file. > > I have tried something like this > ... > IDL will not let me do the concatenation to concatenate the new structure > (temp) onto the (would be) array of structures, list. It fails with > > % Conflicting data structures: TEMP,concatenation. > > I can do this successfully > > list = [list, list] > > to make an array of structures. Try this article on my web page: http://www.dfanning.com/tips/concatenate_structs.html Basically, each anonymous structure has a "secret" name, which makes them impossible to concatenate, since things in an array must be *exactly* the same thing. The article shows you a way out of this dilemma by copying the same anonymous structure and reading into that. Cheers, David -- David Fanning, Ph.D. Fanning Software Consulting Phone: 970-221-0438 E-Mail: davidf@dfanning.com Coyote's Guide to IDL Programming: http://www.dfanning.com/ Toll-Free IDL Book Orders: 1-888-461-0155 [Note: This follow-up was e-mailed to the cited author.]