On 09.01.2021 17:28, Bart via fpc-pascal wrote:
This may be a silly question.
I use System.Move() to move items in a dynamic array, like
Move(FData[0], FData[OldEnd], FStart*SizeOf(T));
Where T is the type of the elements in the array.
This seems to work as expected.
I have some questions though:
1. Does this depend on the alignment of the array?
No. The source and destination pointers may point to unaligned data.
2. Is it OK if the elements of the array are (or contain) managed types?
You need to manually finalize/free elements which are overwritten before
calling Move.
Also if you intend to use Move for duplication of elements of managed types, it is better to use for-loop to copy each
element separately to allow proper increments of references.
3. Are there caveats if T is a specialization of a generic type definition?
No caveats, but see #2.
Yuriy.
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