修复64 位除0问题

Plugins/tolua.bundle/Contents/Info.plist

@@ -59,6 +59,6 @@
 	<key>DTXcodeBuild</key>
 	<string>8E2002</string>
 	<key>NSHumanReadableCopyright</key>
-	<string>Copyright © 2013 topameng. All rights reserved.</string>
+	<string>Copyright © 2014 topameng. All rights reserved.</string>
 </dict>
 </plist>

int64.c

@@ -91,17 +91,17 @@ LUALIB_API bool tolua_isint64(lua_State* L, int pos)
 
 LUALIB_API void tolua_pushint64(lua_State* L, int64_t n)
 {
-    if (toluaflags & FLAG_INT64)    
+    /*if (toluaflags & FLAG_INT64)    
     {
         lua_pushinteger(L, (lua_Integer)n);
     }
     else
-    {
+    {*/
         int64_t* p = (int64_t*)lua_newuserdata(L, sizeof(int64_t));
         *p = n;
         lua_getref(L, LUA_RIDX_INT64);
         lua_setmetatable(L, -2);            
-    }
+    //}
 }
 
 //转换一个字符串为 int64
@@ -211,6 +211,12 @@ static int _int64div(lua_State* L)
 {
     int64_t lhs = tolua_checkint64(L, 1);    
     int64_t rhs = tolua_checkint64(L, 2);
+
+    if (rhs == 0) 
+    {
+        return luaL_error(L, "div by zero");
+    }
+
     tolua_pushint64(L, lhs / rhs);
     return 1;
 }
@@ -272,7 +278,7 @@ static int _int64eq(lua_State* L)
 static int _int64equals(lua_State* L)
 {
     int64_t lhs = tolua_checkint64(L, 1);
-    int64_t rhs = tolua_checkint64(L, 2);
+    int64_t rhs = tolua_toint64(L, 2);
     lua_pushboolean(L, lhs == rhs);
     return 1;
 }

tolua.h

@@ -39,14 +39,14 @@
 #define TOLUA_NOPEER    	LUA_REGISTRYINDEX 		
 #define FLAG_INDEX_ERROR 	1
 #define FLAG_INT64       	2
-#define FLAG_UINT64			4
 
 #define MAX_ITEM 512
 
 #define abs_index(L, i)  ((i) > 0 || (i) <= LUA_REGISTRYINDEX ? (i) : lua_gettop(L) + (i) + 1)
 
 void tolua_openint64(lua_State* L);
 int  tolua_newint64(lua_State* L);
+void tolua_pushint64(lua_State* L, int64_t n);
 
 void tolua_openuint64(lua_State* L);
 int  tolua_newuint64(lua_State* L);

uint64.c

@@ -91,17 +91,10 @@ LUALIB_API bool tolua_isuint64(lua_State *L, int pos)
 
 LUALIB_API void tolua_pushuint64(lua_State *L, uint64_t n)
 {
-    if (toluaflags & FLAG_UINT64)    
-    {
-        lua_pushinteger(L, (lua_Integer)n);
-    }
-    else
-    {
-        uint64_t* p = (uint64_t*)lua_newuserdata(L, sizeof(uint64_t));
-        *p = n;
-        lua_getref(L, LUA_RIDX_UINT64);
-        lua_setmetatable(L, -2);            
-    }
+    uint64_t* p = (uint64_t*)lua_newuserdata(L, sizeof(uint64_t));
+    *p = n;
+    lua_getref(L, LUA_RIDX_UINT64);
+    lua_setmetatable(L, -2);                
 }
 
 //转换一个字符串为 uint64
@@ -194,7 +187,15 @@ static int _uint64sub(lua_State *L)
 {
     uint64_t lhs = tolua_checkuint64(L, 1);    
     uint64_t rhs = tolua_checkuint64(L, 2);
-    tolua_pushuint64(L, lhs - rhs);
+
+    if (lhs > rhs)
+    {
+        tolua_pushuint64(L, lhs - rhs);
+    }
+    else
+    {
+        tolua_pushint64(L, lhs - rhs);
+    }
     return 1;
 }
 
@@ -210,6 +211,12 @@ static int _uint64div(lua_State *L)
 {
     uint64_t lhs = tolua_checkuint64(L, 1);    
     uint64_t rhs = tolua_checkuint64(L, 2);
+
+    if (rhs == 0) 
+    {
+        return luaL_error(L, "div by zero");
+    }
+
     tolua_pushuint64(L, lhs / rhs);
     return 1;
 }
@@ -271,7 +278,7 @@ static int _uint64eq(lua_State *L)
 static int _uint64equals(lua_State *L)
 {
     uint64_t lhs = tolua_checkuint64(L, 1);
-    uint64_t rhs = tolua_checkuint64(L, 2);
+    uint64_t rhs = tolua_touint64(L, 2);
     lua_pushboolean(L, lhs == rhs);
     return 1;
 }