hi i Have a problem when I use a two dimensional dynamic array. I use this: procedure ListDeleted(FilesList: array of array of Integer); Delphi give me compile error How can I fix it?
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1if you have found an answer which worked for you, you should choose it as the accepted answer (by clicking on the tick mark next to it)mjn– mjn2010-11-23 11:23:13 +00:00Commented Nov 23, 2010 at 11:23
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2 Answers
Declare the array type first, then use it in the parameter list
type
T2DIntArr = array of array of Integer;
...
ListDeleted(FilesList: T2DIntArr);
1 Comment
vcldeveloper
@micheal, if this is the answer which worked for you, you should choose it as the accepted answer (by clicking on the tick mark next to it).
Define a custom type:
type
TIntArray2 = array of array of Integer;
If you just read the parameter content in ListDeleted, use
procedure ListDeleted(const FilesList: TIntArray2)
If the parameters are about to be modified internaly , use
procedure ListDeleted(var FilesList: TIntArray2)
If the parameters are to be modified internally, but the modification should not be propagated to the caller, use
procedure ListDeleted(FilesList: TIntArray2)
But notice that the last declaration (with no const nor var) will make a temporary copy of the array before calling ListDeleted, which is not a good idea for performance.
