commit d356183402e214f4859cd6508964d4b5e781c598
parent e61ee8a036e83667de9c4378e70a278876c81135
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Tue, 3 Nov 2015 13:35:35 -0200
new function 'luaS_hashlongstr'
Diffstat:
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/lstring.c b/lstring.c
@@ -1,5 +1,5 @@
/*
-** $Id: lstring.c,v 2.53 2015/09/22 14:18:24 roberto Exp roberto $
+** $Id: lstring.c,v 2.54 2015/10/08 15:53:31 roberto Exp roberto $
** String table (keeps all strings handled by Lua)
** See Copyright Notice in lua.h
*/
@@ -56,6 +56,16 @@ unsigned int luaS_hash (const char *str, size_t l, unsigned int seed) {
}
+unsigned int luaS_hashlongstr (TString *ts) {
+ lua_assert(ts->tt == LUA_TLNGSTR);
+ if (ts->extra == 0) { /* no hash? */
+ ts->hash = luaS_hash(getstr(ts), ts->u.lnglen, ts->hash);
+ ts->extra = 1; /* now it has its hash */
+ }
+ return ts->hash;
+}
+
+
/*
** resizes the string table
*/
diff --git a/lstring.h b/lstring.h
@@ -1,5 +1,5 @@
/*
-** $Id: lstring.h,v 1.59 2015/03/25 13:42:19 roberto Exp roberto $
+** $Id: lstring.h,v 1.60 2015/09/08 15:41:05 roberto Exp roberto $
** String table (keep all strings handled by Lua)
** See Copyright Notice in lua.h
*/
@@ -34,6 +34,7 @@
LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed);
+LUAI_FUNC unsigned int luaS_hashlongstr (TString *ts);
LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b);
LUAI_FUNC void luaS_resize (lua_State *L, int newsize);
LUAI_FUNC void luaS_clearcache (global_State *g);