From 573372665ab47bb6c0451ee7ca3ff5fce9b370e0 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Thu, 11 Nov 1999 15:02:40 -0200
Subject: new API function `lua_equalobj'

---
 lapi.c     | 15 ++++++++++-----
 lbuiltin.c |  6 +++++-
 lua.h      |  4 +++-
 3 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/lapi.c b/lapi.c
index 020a4642..33e384d3 100644
--- a/lapi.c
+++ b/lapi.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lapi.c,v 1.54 1999/10/14 19:13:31 roberto Exp roberto $
+** $Id: lapi.c,v 1.55 1999/11/04 17:22:26 roberto Exp roberto $
 ** Lua API
 ** See Copyright Notice in lua.h
 */
@@ -209,15 +209,15 @@ const char *lua_type (lua_Object o) {
 }
 
 int lua_isnil (lua_Object o) {
-  return (o!= LUA_NOOBJECT) && (ttype(Address(o)) == LUA_T_NIL);
+  return (o != LUA_NOOBJECT) && (ttype(Address(o)) == LUA_T_NIL);
 }
 
 int lua_istable (lua_Object o) {
-  return (o!= LUA_NOOBJECT) && (ttype(Address(o)) == LUA_T_ARRAY);
+  return (o != LUA_NOOBJECT) && (ttype(Address(o)) == LUA_T_ARRAY);
 }
 
 int lua_isuserdata (lua_Object o) {
-  return (o!= LUA_NOOBJECT) && (ttype(Address(o)) == LUA_T_USERDATA);
+  return (o != LUA_NOOBJECT) && (ttype(Address(o)) == LUA_T_USERDATA);
 }
 
 int lua_iscfunction (lua_Object o) {
@@ -225,7 +225,7 @@ int lua_iscfunction (lua_Object o) {
 }
 
 int lua_isnumber (lua_Object o) {
-  return (o!= LUA_NOOBJECT) && (tonumber(Address(o)) == 0);
+  return (o != LUA_NOOBJECT) && (tonumber(Address(o)) == 0);
 }
 
 int lua_isstring (lua_Object o) {
@@ -238,6 +238,11 @@ int lua_isfunction (lua_Object o) {
   return (t == LUA_T_PROTO) || (t == LUA_T_CPROTO);
 }
 
+int lua_equalobj (lua_Object o1, lua_Object o2) {
+  if (o1 == LUA_NOOBJECT || o2 == LUA_NOOBJECT) return 0;
+  else return luaO_equalObj(Address(o1), Address(o2));
+}
+
 
 double lua_getnumber (lua_Object object) {
  if (object == LUA_NOOBJECT) return 0.0;
diff --git a/lbuiltin.c b/lbuiltin.c
index 7dc09664..98918b54 100644
--- a/lbuiltin.c
+++ b/lbuiltin.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lbuiltin.c,v 1.70 1999/11/04 17:22:26 roberto Exp roberto $
+** $Id: lbuiltin.c,v 1.71 1999/11/10 15:41:11 roberto Exp roberto $
 ** Built-in functions
 ** See Copyright Notice in lua.h
 */
@@ -741,6 +741,10 @@ static void testC (void) {
                    n=lua_next(reg[n], (int)lua_getnumber(reg[getnum(s)]));
                    lua_pushnumber(n); break;
                  }
+      case 'q' : { int n1=getnum(s); int n2=getnum(s);
+                   lua_pushnumber(lua_equalobj(reg[n1], reg[n2]));
+                   break;
+                 }
       default: luaL_verror("unknown command in `testC': %c", *(s-1));
     }
   if (*s == 0) return;
diff --git a/lua.h b/lua.h
index 2ba27c50..12cbb626 100644
--- a/lua.h
+++ b/lua.h
@@ -1,5 +1,5 @@
 /*
-** $Id: lua.h,v 1.35 1999/09/29 12:56:22 roberto Exp roberto $
+** $Id: lua.h,v 1.36 1999/10/07 19:04:30 roberto Exp roberto $
 ** Lua - An Extensible Extension Language
 ** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
 ** e-mail: lua@tecgraf.puc-rio.br
@@ -68,6 +68,8 @@ int            lua_isnumber             (lua_Object object);
 int            lua_isstring             (lua_Object object);
 int            lua_isfunction           (lua_Object object);
 
+int            lua_equalobj		(lua_Object o1, lua_Object o2);
+
 double         lua_getnumber 		(lua_Object object);
 const char    *lua_getstring 		(lua_Object object);
 long           lua_strlen 		(lua_Object object);
-- 
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