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udata is just void * again, so there is no point for function "getbyte".

This commit is contained in:
Roberto Ierusalimschy 1997-06-09 14:29:45 -03:00
parent 085181a08a
commit 33ace03b5a
1 changed files with 0 additions and 45 deletions
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45
iolib.c
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@ -276,49 +276,6 @@ static void errorfb (void)
}
/* --------------------------------------------
* functions to manipulate userdata
*/
static void getbyte (void)
{
lua_Object ud = lua_getparam(1);
int i = luaL_opt_number(2, -1);
luaL_arg_check(lua_isuserdata(ud), 1, "userdata expected");
if (i == -1)
lua_pushnumber(lua_getbindatasize(ud));
else {
i--;
if (0 <= i && i < lua_getbindatasize(ud))
lua_pushnumber(*(((char *)lua_getbindata(ud))+i));
else
lua_pushnil();
}
}
static void newuserdata (void)
{
lua_Object t = lua_getparam(1);
int tag = luaL_opt_number(2, 0);
int i;
luaI_emptybuff();
luaL_arg_check(lua_istable(t), 1, "table expected");
for (i=0; ; i++) {
lua_Object o;
lua_beginblock();
lua_pushobject(t);
lua_pushnumber(i+1);
o = lua_rawgettable();
if (lua_isnil(o)) {
lua_endblock();
break;
}
luaL_arg_check(lua_isnumber(o), 1, "table values must be numbers");
luaI_addchar(lua_getnumber(o));
lua_endblock();
}
lua_pushbindata(luaI_addchar(0), i, tag);
}
static struct luaL_reg iolib[] = {
{"readfrom", io_readfrom},
@ -334,8 +291,6 @@ static struct luaL_reg iolib[] = {
{"date", io_date},
{"exit", io_exit},
{"debug", io_debug},
{"getbyte", getbyte},
{"userdata", newuserdata},
{"print_stack", errorfb}
};