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[Bug] Garbage collection with execute? [message #77898]

Wed, 28 September 2011 04:30

SonicKenking
Messages: 51
Registered: October 2010

Member

It seems to me that the IDL 8.x automatic garbage collection does NOT
work for the variables created by the "execute" command. Consider the
following very simple procedure.

pro test_gc
ok = execute('a = hash()')
end

If I run the above procedure, it ended up with memory leaking as
follows:

IDL> test_gc
% Compiled module: TEST_GC.
IDL> help, /heap
Heap Variables:
# Pointer: 1
# Object : 1

<ObjHeapVar1> refcount=1
STRUCT = -> HASH Array[1]
<PtrHeapVar2> refcount=1
STRUCT = -> IDL_HASHTABLEENTRY Array[2]

So to fix it, I have to explicitly release the variable 'a' in the
procedure, which is not optimal. Is this a known issue/bug? Both 8.0
and 8.1 have the same problem. Or did I miss something?

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