[fpc-pascal] Questions regarding arrays

[Honza]

2010/9/23 Graeme Geldenhuys <graemeg.lists at gmail.com>:
> Out of interest. Do you know if dynamic array elements are in sequence
> (storage area in memory) too - like static arrays? So could I do the
> same as above, but instead of using a static array, use a dynamic
> array, and pass the address of the first element to the C API?

AFAIK yes as long as you don't break (it's possible using some wild
casting) the ref counting mechanism and handle the zero length case.

var
  V1: array [L..H] of T;
  V2: array of T;

magic_c_function(@V1[L]);
if Length(V2) <> 0 then
  magic_c_function(@V2[0])
else
  magic_c_function(nil);

-- 
bflm
freepascal-bits.blogspot.com