...so what *is* the proper way to increase the size of a mapped file with structure? Delete and re-create?
On Mon, Aug 29, 2011 at 1:34 PM, Raul Miller <[email protected]> wrote: > On Mon, Aug 29, 2011 at 2:02 AM, Steven Taylor <[email protected]> wrote: >> I tried a quick experiment where I thought I would create a mapped file, >> allocate maximum, close the file, expand the file, and then reoppen it. My >> assumption was that when the file was reopenned that I'd be able to allocate >> two more values (each value takes 8 bytes). However, instead I get an 'bad >> jmf header' error. Is this just an assertion (i.e. people wont normally do >> this), or is there an underlying reason why I shouldn't do it this way? > > jdatafn3 is a file with structure. For example, you could have done: > jdata3 =. i.5 5 5 > instead of > jdata3 =. i.125 > > So J has to have a description of that structure contained in the file. > > -- > Raul > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
