Hi Alexander,
> 1. This doesn't look right:
>
> #define luai_numpow(a,b) luai_nummul(a,b)
Yes, it isn't. But, please note, I didn't change that now. I just
merged it in one single file. Though I think we need implement integer
exponentiation, I think that is not a priority. IMO, it is a TODO.
> 2. If intmax_t is a greater type than int64_t, the below doesn't
> handle overflow:
> #define lua_str2number(s,p) ((int64_t) strtoimax((s), (p), 10))
I'm considering two approaches:
1) creating an auxiliary function based on strtoimax():
int64_t
strtoint64(const char *nptr, char **endptr, int base)
{
imax_t imax = strtoimax(nptr, endptr, base);
return (int64_t) (imax >= INT64_MIN && imax <= INT64_MAX ? imax : 0);
}
#define lua_str2number(s,p) (strtoint64((s), (p), 10))
2) creating an auxiliary function based on strtol template
(...)
#define _FUNCNAME strtoint64
#define __INT int64_t
#define __INT_MIN INT64_MIN
#define __INT_MAX INT64_MAX
#include "_strtol.h"
(...)
I prefer the first approach, because it uses a std function without
re-implementing it. Waiting to hear your and others considerations.
> I checked Lua code and there is no overflow check. However, I noticed
> that they detect "0x" strings and convert them using strtoul. It should
> be changed to stroumax. This is in function luaO_str2d in src/lobject.c.
I'll check that.
> 3. Item 1 was in my earlier review of luaconf.h in sys/modules and I see
> at least one minor item not covered by your new change. Can you please
> go over my review and make sure all covered?
Sorry, I've missed that. Which review? Are you talking about the
"changing lua_Number to int64_t" thread?
Regards,
--
Lourival Vieira Neto
