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Re: Allocating memory in LINKIMAGE program
You can use something like this to return an array of (n)
s = (IDL_STRING *)IDL_MakeTempVector(IDL_TYP_STRING,
n, IDL_BARR_INI_ZERO, &vpTmp);
In general, do not pass memory you allocated with malloc back
to IDL, especially if you want IDL to clean it up later for you.
Hope it helps.
Virginia Rogers wrote:
> I have a C program which queries a database and returns a list of all matching
> entries. I am making this routine callable in IDL with LINKIMAGE. I'd like to
> return a string array to the calling IDL program. My question is, how do I
> allocate the memory to store the strings? The C program has allocated space for
> all of the strings with malloc(). Can I call IDL_MakeTempArray() to create the
> string array and then set each of the string pointers to point to the location
> allocated by malloc()? Is there another source of information about using
> LINKIMAGE other than the IDL Advanced Development Guide?
> Thanks! Ginny
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