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small optimizations (?)
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parent
763c64be9b
commit
5981161360
10
lstring.c
10
lstring.c
@ -1,5 +1,5 @@
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/*
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** $Id: lstring.c,v 1.8 1997/12/09 13:35:19 roberto Exp roberto $
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** $Id: lstring.c,v 1.9 1997/12/30 19:15:52 roberto Exp roberto $
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** String table (keeps all strings handled by Lua)
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** See Copyright Notice in lua.h
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*/
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@ -102,17 +102,21 @@ static TaggedString *insert (char *buff, int tag, stringtable *tb)
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{
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TaggedString *ts;
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unsigned long h = hash(buff, tag);
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int size = tb->size;
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int i;
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int j = -1;
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if ((long)tb->nuse*3 >= (long)tb->size*2)
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if ((long)tb->nuse*3 >= (long)size*2) {
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grow(tb);
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for (i = h%tb->size; (ts = tb->hash[i]) != NULL; i = (i+1)%tb->size) {
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size = tb->size;
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}
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for (i = h%size; (ts = tb->hash[i]) != NULL; ) {
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if (ts == &EMPTY)
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j = i;
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else if ((ts->constindex >= 0) ? /* is a string? */
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(tag == LUA_T_STRING && (strcmp(buff, ts->str) == 0)) :
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((tag == ts->u.d.tag || tag == LUA_ANYTAG) && buff == ts->u.d.v))
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return ts;
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if (++i == size) i=0;
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}
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/* not found */
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if (j != -1) /* is there an EMPTY space? */
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5
ltable.c
5
ltable.c
@ -1,5 +1,5 @@
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/*
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** $Id: ltable.c,v 1.9 1997/12/15 16:17:20 roberto Exp roberto $
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** $Id: ltable.c,v 1.10 1998/01/09 14:44:55 roberto Exp roberto $
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** Lua tables (hash)
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** See Copyright Notice in lua.h
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*/
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@ -65,7 +65,8 @@ static int present (Hash *t, TObject *key)
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if (ttype(rf) != LUA_T_NIL && !luaO_equalObj(key, rf)) {
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int h2 = h%(tsize-2) + 1;
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do {
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h1 = (h1+h2)%tsize;
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h1 += h2;
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if (h1 >= tsize) h1 -= tsize;
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rf = ref(node(t, h1));
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} while (ttype(rf) != LUA_T_NIL && !luaO_equalObj(key, rf));
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}
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