Re: Lua without stdio?

[Shmuel Zeigerman <shmuz@...>]

Luiz Henrique de Figueiredo wrote:
> See http://lua-users.org/lists/lua-l/2008-05/msg00666.html for a sample
> implementation with pointers to whatever is missing.

The implementation of floor works incorrectly for negative x.
The following seems to work OK:

double floor(double x)
{
  double y;
  if (x >= 0) return (double)(int)x;
  y = (double)(int)(x-1);
  return x - y == 1 ? x : y;
}

--
Shmuel