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- Subject: Re: Lua for PalmOS - Some questions
- From: Luiz Henrique de Figueiredo <lhf@...>
- Date: Thu, 4 Mar 2004 13:42:19 -0300
>That helped a lot
I didn't do much testing; I tried to keep it simple and go for correctness
instead of speed. If you find any bugs, please let me know.
>I'll seek for a MIT-licensed vsprintf.c on Google... If I
>can't find one, I'll write one by my own. :-)
Note that you do not need a full-blown sprintf. The only place in the core
that uses sprintf is this:
lvm.c:#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
So, you only need it to convert numbers to strings. If your port does not
use floating-point numbers, this is really easy...
The functions that the core uses but are not in my implementation are:
sprintf, strtod, setjmp, longjmp, exit.
strtod is only needed to convert strings to numbers. The same remark about
sprintf applies here: strtod is used at only one place:
lobject.c:#define lua_str2number(s,p) strtod((s), (p))
setjmp and longjmp depend on the compiler.
exit depends on the hosting environment.