I'm working on a solution that should work in C++-Builder and Delphi, that's why I use Object Pascal syntax, but I'm not very familiar with it. I try to access a file mapping with a size that is not defined at runtime with Free Pascal/Delphi. I triedtype  TFileMappingLayout = packed record    Size: DWORD;    Data: array [0..0] of byte;  end;  PFileMappingLayout = ^TFileMappingLayout;but I'm not sure if this is conform with range checking. It seems to be impossible to google for it, I found nothing useful so far. Reading descriptions about creating structured types did not mention cases like this. I also had a look into the Lazarus source code, but I gave up after 100 trivial record definitions...I use the Data field only for binary copying, for instance, writing to it:  PFileMappingLayout(FData)^.size := cbData;  Move(myData, PFileMappingLayout(FData)^.Data, cbData);How is this normally done in Delphi/Free Pascal?How would you name this kind of record definition (open record, partial record)?
Records defining a partial memory layout
delphi;pascal;object pascal