Re: Arithmetic on strings

[Patrick Donnelly <batrick@...>]

On Mon, Jul 9, 2012 at 12:10 AM, Rena <hyperhacker@gmail.com> wrote:
> +1, I've expressed a few times that functions expecting strings as input
> should call [__]tostring. It'd make life easier when dealing with objects
> that may or may not be strings but can be converted to them. The C API is
> where this bugs me most, as few libraries bother to do it themselves.

Lua 5.2 is better about this. Lua tostring() is simply a wrapper
around luaL_tostring. [The auxiliary library is appropriate for this
coercion I think.] So if a C library wants to coerce an input into a
string, luaL_tostring is basically what you want. No need to
lua_getglobal(L, "tostring").

-- 
- Patrick Donnelly