On 28/10/2014 7:53 PM, John McKown 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.
I've got a new build for Lua4z which includes sqlite3 as part of LuaSQL
https://github.com/keplerproject/luasql. I'm going to release it soon
with the regex extensions for POSIX and PCRE.
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