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avoids type punning for table keys

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This commit is contained in:
Roberto Ierusalimschy
2006-01-10 10:51:53 -02:00
parent fa936f8fa9
commit ffb798e1e2
3 changed files with 42 additions and 35 deletions
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14
ltable.h
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@@ -1,5 +1,5 @@
/*
** $Id: ltable.h,v 2.7 2005/04/25 19:24:10 roberto Exp roberto $
** $Id: ltable.h,v 2.8 2005/06/06 13:30:25 roberto Exp roberto $
** Lua tables (hash)
** See Copyright Notice in lua.h
*/
@@ -11,15 +11,13 @@
#define gnode(t,i) (&(t)->node[i])
#define gkey(n) (&(n)->i_key)
#define gkey(n) (&(n)->i_key.nk)
#define gval(n) (&(n)->i_val)
#define gnext(n) ((n)->i_key.next)
#define gnext(n) ((n)->i_key.nk.next)
#define key2tval(n) (cast(const TValue *, gkey(n)))
#define key2tval(n) (&(n)->i_key.tvk)
LUAI_DATA const Node luaH_dummynode;
LUAI_FUNC const TValue *luaH_getnum (Table *t, int key);
LUAI_FUNC TValue *luaH_setnum (lua_State *L, Table *t, int key);
LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key);
@@ -35,5 +33,9 @@ LUAI_FUNC int luaH_getn (Table *t);
/* exported only for debugging */
LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key);
#define luaH_dummynode (&luaH_dummynode_)
LUAI_DATA const Node luaH_dummynode_;
#endif