NAME

lua_touserdata — returns address to userdata, function indicator [-0, +0, -]

SYNOPSIS

#include <lua.h>

void *
lua_touserdata(lua_State *L, int index);

DESCRIPTION

If the value at the given acceptable index is a full userdata, returns its block address.

RETURN VALUES

If the value is a light userdata, returns its pointer. Otherwise, returns NULL.

SEE ALSO

Roberto Ierusalimschy, Luiz Henrique de Figueiredo, and Waldemar Celes, Lua 5.1 Reference Manual.

HISTORY

The lua_touserdata() manual page is based on Lua Reference Manual 5.1 and was created by Sergey Bronnikov.