Re: Unexpected randomseed results (was [ANN] uuid: pure Lua uuid generator)

[Sean Conner <sean@...>]

It was thus said that the Great Sean Conner once stated:
> 
>   In thinking about it, Lua should do the following:
> 
> 	srand(luaL_checkint(L,1) % INT_MAX);

  Ooops, that's silly.  What I meant was:

	srand((unsigned int)fmod(luaL_checknumber(L,1),UINT_MAX));

  for both Lua 5.1 and 5.2.  

  Or perhaps:

	double       ds = luaL_checknumber(L,1);
	unsigned int s;

	if (ds < 1.0)
	  s = (unsigned int)(ds * (double)UINT_MAX);
	else if (ds > UINT_MAX)
 	  s = (unsigned int)fmod(ds,UINT_MAX);
	else
	  s = (unsigned int)ds;

	srand(ds);

to force it into a range of 0 .. UINT_MAX.

  -spc (Or just keep it as is and be a bit more careful about seeding)