StackOverflow2013

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Id
16053132
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0
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2013-04-17T06:34:30.840
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2013-04-17T06:34:30.840
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23354
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16052529
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2
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text
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The variables here are <code>i</code> and <code>images</code> (and even the <code>images</code> I can't be sure about without seeing the declaration - it could be a field). <code>images</code> here is just a reference to (it looks like) a <code>List<Image></code> - so the entire of <code>images</code> is either 4 or 8 bytes. The list itself will take more space; there is the object itself, plus the backing array, plus a few counters. Swapping an item in a list, as with swapping an element in an array, does not involve allocating any extra room in the list/array. The one thing that could (and almost certainly does) cause allocation here is the <code>IProcessing.Color_style</code>. It sounds like this will be creating a new image based on an old image (rather than changing the old image in place). Furthermore, it looks a lot like you aren't disposing the old image - so if this is the only place you are using that image, you could be causing yourself a few problems: images are <code>IDisposable</code> and are linked to GDI+ handles; if you don't dispose them you can get problems with <code>OutOfMemoryException</code> that isn't linked to memory, but actually to GDI+ handles. Especially if you have a lot of spare memory, so that garbage collection doesn't happen very frequently. Of course, this is also slightly complicated because if you are using that image elsewhere (on a control, etc), then you do not want to dispose it now! A line does not need to involve <code>new</code> to involve an allocation (allocations can be hidden behind method-calls, operators, properties); likewise, not every line involving <code>new</code> requires an allocation (value-types are initialized over the top of the existing location).
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1. This table or related slice is empty.
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1. POMemory issue with Variables
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1. PTAnswer
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1. This table or related slice is empty.
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1. USMarc Gravell
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