Re: Wrapping existing FILE *s as Lua file objects

["Reuben Thomas" <rrt@...>]

On Sun, 14 Jan 2007 07:27:42 -0000, Mark Edgar  
<medgar@student.gc.maricopa.edu> wrote:

>      FILE **pf = lua_newuserdata(L, sizeof *pf);
>      *pf = 0;
>      luaL_getmetatable(L, LUA_FILEHANDLE);
>      lua_setmetatable(L, -2);
>      *pf = /* your FILE* here */

Why is *pf initially set to NULL?

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