Bring all interesting fixes from the C++ implementation back into the C implementation

1 files changed, 12 insertions, 4 deletions

diff --git a/src/tools.h b/src/tools.h
index a0893e4..6c08734 100644
--- a/src/tools.h
+++ b/src/tools.h
@@ -31,14 +31,22 @@ enum e_vt
     VT_KEY,
     VT_METATABLE
 };
+
+enum eInterCopyResult
+{
+    eICR_Success,
+    eICR_NotEnoughValues,
+    eICR_Error
+};
+typedef enum eInterCopyResult InterCopyResult;
+
 bool_t inter_copy_one( Universe* U, lua_State* L2, uint_t L2_cache_i, lua_State* L, uint_t i, enum e_vt vt, LookupMode mode_, char const* upName_);
 
 // ################################################################################################
 
-int luaG_inter_copy_package( Universe* U, lua_State* L, lua_State* L2, int package_idx_, LookupMode mode_);
-
-int luaG_inter_copy( Universe* U, lua_State* L, lua_State* L2, uint_t n, LookupMode mode_);
-int luaG_inter_move( Universe* U, lua_State* L, lua_State* L2, uint_t n, LookupMode mode_);
+InterCopyResult luaG_inter_copy_package( Universe* U, lua_State* L, lua_State* L2, int package_idx_, LookupMode mode_);
+InterCopyResult luaG_inter_copy( Universe* U, lua_State* L, lua_State* L2, uint_t n, LookupMode mode_);
+InterCopyResult luaG_inter_move( Universe* U, lua_State* L, lua_State* L2, uint_t n, LookupMode mode_);
 
 int luaG_nameof( lua_State* L);