Re: [fpc-pascal] two questions about dynamic array

2013-03-13 Thread Sven Barth
Am 13.03.2013 10:53 schrieb "Xiangrong Fang" : > > 2013/3/13 Sven Barth >> >> Am 13.03.2013 10:08 schrieb "Xiangrong Fang" : >> > 2) After SetLength(myarray, 0), is myarray nil or pointing to some invalid address? >> >> It will be Nil. An equivalent alternative would be: >> >> MyArray := Nil; > >

Re: [fpc-pascal] two questions about dynamic array

2013-03-13 Thread Xiangrong Fang
2013/3/13 Sven Barth > Am 13.03.2013 10:08 schrieb "Xiangrong Fang" : > > 2) After SetLength(myarray, 0), is myarray nil or pointing to some > invalid address? > > It will be Nil. An equivalent alternative would be: > > MyArray := Nil; > Sorry, I didn't see this reply just now... You mean, by

Re: [fpc-pascal] two questions about dynamic array

2013-03-13 Thread Sven Barth
Am 13.03.2013 10:08 schrieb "Xiangrong Fang" : > 2) After SetLength(myarray, 0), is myarray nil or pointing to some invalid address? It will be Nil. An equivalent alternative would be: MyArray := Nil; Regards, Sven ___ fpc-pascal maillist - fpc-pasca

[fpc-pascal] two questions about dynamic array

2013-03-13 Thread Xiangrong Fang
Hi All, I have two simple questions: 1) As far as I know class variables in FPC are automatic initialize to the NULL value (e.g. 0 or "" or whatever), does that include dynamic arrays? e.g. TMyClass = class myarray: array[0..100] of Integer; end; will myarray be initialized to nil? 2) Aft