Re: integer Lua 4.0

[Reuben Thomas <rrt1001@...>]

> I should have gone through the code and changed all doubles (there are a few;
> they occur in lua.h, lapi.c, lauxlib.h, liolib.c, lmathlib.c).

So presumably you can change all the doubles which are really LUA_NUM_TYPE
to LUA_NUM_TYPE in the code.

> <   if (fscanf(f, "%lf", &d) == 1) {
> ---
> >   if (fscanf(f, "%ld", &d) == 1) {
> 448c448
> <       status = status && fprintf(f, "%.16g", lua_tonumber(L, arg)) > 0;
> ---
> >       status = status && fprintf(f, "%ld", lua_tonumber(L, arg)) > 0;

Looks like a couple of #defines are needed here, one for each format.

> < #define lua_str2number(s,p)	strtod((s), (p))
> ---
> > #define lua_str2number(s,p)	strtol((s), (p), 10)

...and another one here, perhaps using a new symbol LUA_NUM_TYPE_IS_INTEGRAL
to decide which one to use.

I hope that in 4.1 this can be formalised, so you really can change Lua to
integer use just by changing LUA_NUM_TYPE (and perhaps my suggested
LUA_NUM_TYPE_IS_INTEGRAL).

-- 
http://sc3d.org/rrt/ | certain, a.  insufficiently analysed