On 17/02/14 09:51, Michael Van Canneyt wrote: > > > On Mon, 17 Feb 2014, Lukasz Sokol wrote: > >> On 17/02/14 06:02, Jürgen Hestermann wrote: >>> >>> Am 2014-02-16 17:16, schrieb Michael Van Canneyt: >>>> It does exactly that, it says: >>>> 1) No COW >>> >>> As said already: SetLength *is* a write! >>> >>> >> >> I'm not of compiler background - but I think you're confusing things here. >> >> To 'write' usually means : changing DATA element(s). That's it. You have a >> sheet of paper of >> known size and you write on it/erase/change the text. But the size of the >> array remains the same. >> >> SetLength is /not/ a write in this sense : because you're resizing the paper >> you're >> going to write on (e.g. adding another page or cutting it to size) >> >> As far I understood, SetLength is changing the /description/ of the array >> (meta-data?) but not the data itself : >> in this sense, it is not a 'write data' operation. >> >> It does 'write' as in: change parameters - of the array DESCRIPTION area, >> but that area is not ARRAY DATA; >> and enlarging/shrinking the memory allocation - but that does not change the >> content of the already >> written-to array elements: it may add some blank ones or remove some >> written-to ones, but the rest >> remains UNCHANGED, i.e. they (the just-added or remaining-after-removal >> ones) are not being written-to >> by doing SetLength.) > > That is the long version of what I was trying to say. Thank you :) > > Michael. > >
*grin* *wink* so many redundant words ... some need them ;) Can you add the long(er) description to the help text ? :) -L. _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
