I often use j6 just so I can run its labs. The .cpp suffix indicates a c++ file - so you would use a c++ compiler to build that "dll".
Note that at one point in history, .cpp would probably have indicated a "c pre processor" file. Then again, early versions of what became c++ were apparently written in cpp's macro language. Note also that "dll" implies windows. I think OsX uses ".dynlib" or something like that. Linux and *BSD mostly use ".so" (shared object). Anyways, you need a compiler to build a library file (or you need a lot of study to build one by hand - a good preliminary step in building a compiler). And as we currently don't have any J compilers that can build libraries (f. and 13 : could be thought of as J compilers, but they aren't the right kind), ... Enough said? Thanks, -- Raul On Jul 9, 2014 4:55 AM, "Jon Hough" <[email protected]> wrote: > In J7/8 is it possible to build and use DLL files and call them from other > programs (e.g. .NET programs etc)? > I tried doing one of the DLL Labs in J7.01, and got blocked when the Lab > tried to load a non-existent file: > > > open '~system\examples\dllwrite\dlltest.cpp' > > Presumably this is left over from J6, and is not included in later > versions? Regardless, the cpp file does not exist. > > Also, I tried looking through the JWiki guide for using DLLs, which also > seems to be only usable in J6? > > In J7/8 how can I : > > (a) call dll from J script? > > (b) create a DLL file to be called by another program? > > > Regards, > Jon > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
