On Tue, Oct 28, 2014 at 6:53 AM, John McKown <[email protected]> wrote:
> On Mon, Oct 27, 2014 at 8:12 PM, David Crayford <[email protected]> > wrote: > >> On 28/10/2014 4:20 AM, John McKown wrote: >> >>> This is likely a silly question. Does lua4z use HFP (zArch) or BFP (IEEE) >>> floating point? If I had to guess, I'd _guess_ HFP. >>> >> >> You guessed wrong :). Lua numbers are double precision IEEE BFP. This did >> cause some problems. For example, the DB2 ODBC driver only supports HFP so >> I had to do manual >> conversions in LuaSQL. > > > Most excellent! That makes it totally compatible with the SQLite port for > z/OS, which also uses BFP as its "native" floating point. I am working on > a new port of SQLite, version 3.8.7, and thought that I might look at a lua > package as well. I think that I have a basic understanding of how to use > the dynamic linking. Basically, create a "shared object" named, say, > "sqlite3.so" which contains a function called luaopen_sqlite3 & put it in > the "lib/lua/5.1" subdirectory. I know how to create an executable (main) > program using C, but I've never created a shared object. What I may do is > first create this package using my Linux system, then "port" it to z/OS. > Well I'll be dipped. Someone already beat me to it. So I just need to port their code to z/OS instead of writing it from scratch. -- The temperature of the aqueous content of an unremittingly ogled culinary vessel will not achieve 100 degrees on the Celsius scale. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
