nik/lush
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

code parameterized by LUA_FIRSTINDEX (first index of an array)

Browse Source
This commit is contained in:
Roberto Ierusalimschy
2004-05-10 14:50:51 -03:00
parent b0f341ee52
commit 7e41612eb2
7 changed files with 32 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
lbaselib.c
View File

@@ -1,5 +1,5 @@
/*
** $Id: lbaselib.c,v 1.141 2004/03/26 13:25:17 roberto Exp roberto $
** $Id: lbaselib.c,v 1.142 2004/04/30 20:13:38 roberto Exp roberto $
** Basic library
** See Copyright Notice in lua.h
*/
@@ -257,7 +257,7 @@ static int luaB_ipairs (lua_State *L) {
luaL_checktype(L, 1, LUA_TTABLE);
lua_pushvalue(L, lua_upvalueindex(1)); /* return generator, */
lua_pushvalue(L, 1); /* state, */
lua_pushinteger(L, 0); /* and initial value */
lua_pushinteger(L, LUA_FIRSTINDEX - 1); /* and initial value */
return 3;
}
@@ -347,11 +347,12 @@ static int luaB_assert (lua_State *L) {
static int luaB_unpack (lua_State *L) {
int i = luaL_optint(L, 2, 1);
int i = luaL_optint(L, 2, LUA_FIRSTINDEX);
int e = luaL_optint(L, 3, -1);
int n;
luaL_checktype(L, 1, LUA_TTABLE);
if (e == -1) e = luaL_getn(L, 1);
if (e == -1)
e = luaL_getn(L, 1) + LUA_FIRSTINDEX - 1;
n = e - i + 1; /* number of elements */
if (n <= 0) return 0; /* empty range */
luaL_checkstack(L, n, "table too big to unpack");