NETINFO_ITEMs are not stored in a vector anymore, instead they are held in a unordered_map. Now, the net codes may be not consecutive. There is another way for assigning net codes (using a static int that holds a possible empty net code and a function that makes sure it is not used [getFreeNetCode()]).

Removed some unused fields (NETINFO_ITEM::m_NbNodes, m_NbLink, m_NbNoconn, m_Flag).

pcbnew/class_board.cpp

@@ -2571,8 +2571,7 @@ void BOARD::ReplaceNetlist( NETLIST& aNetlist, bool aDeleteSinglePadNets,
                         if( netinfo == NULL )
                         {
                             // It is a new net, we have to add it
-                            netinfo = new NETINFO_ITEM( this, net.GetNetName(),
-                                                        m_NetInfo.GetNetCount() );
+                            netinfo = new NETINFO_ITEM( this, net.GetNetName() );
                             m_NetInfo.AppendNet( netinfo );
                         }
 

pcbnew/class_netinfo.h

@@ -34,7 +34,6 @@
 #define __CLASSES_NETINFO__
 
 
-#include <vector>
 #include <gr_basic.h>
 #include <class_netclass.h>
 #include <boost/unordered_map.hpp>
@@ -132,14 +131,16 @@ public:
 
     /**
      * Function GetItem
-     * @param aNetcode = netcode to identify a given NETINFO_ITEM
-     * @return NETINFO_ITEM* - by \a aNetcode, or NULL if not found
+     * @param aNetCode = netcode to identify a given NETINFO_ITEM
+     * @return NETINFO_ITEM* - by \a aNetCode, or NULL if not found
      */
-    NETINFO_ITEM* GetNetItem( int aNetcode ) const
+    NETINFO_ITEM* GetNetItem( int aNetCode ) const
     {
-        if( unsigned( aNetcode ) >= GetNetCount() )     // catches < 0 too
-            return NULL;
-        return m_NetBuffer[aNetcode];
+        NETCODES_MAP::const_iterator result = m_netCodes.find( aNetCode );
+        if( result != m_netCodes.end() )
+            return (*result).second;
+
+        return NULL;
     }
 
     /**
@@ -161,7 +162,7 @@ public:
      * @return the number of nets ( always >= 1 )
      * because the first net is the "not connected" net and always exists
      */
-    unsigned GetNetCount() const { return m_NetBuffer.size(); }
+    unsigned GetNetCount() const { return m_netNames.size(); }
 
     /**
      * Function Append
@@ -211,9 +212,9 @@ public:
 #endif
 
     typedef boost::unordered_map<const wxString, NETINFO_ITEM*, WXSTRING_HASH> NETNAMES_MAP;
+    typedef boost::unordered_map<const int, NETINFO_ITEM*> NETCODES_MAP;
 
 private:
-
     /**
      * Function DeleteData
      * deletes the list of nets (and free memory)
@@ -237,9 +238,20 @@ private:
      */
     void buildPadsFullList();
 
+    /**
+     * Function getFreeNetCode
+     * returns the first available net code that is not used by any other net.
+     */
+    int getFreeNetCode() const;
+
     BOARD*                      m_Parent;
+
     NETNAMES_MAP m_netNames;                    ///< map for a fast look up by net names
-    std::vector<NETINFO_ITEM*>  m_NetBuffer;    ///< net list (name, design constraints ..)
+    NETCODES_MAP m_netCodes;                    ///< map for a fast look up by net codes
+
+    static int m_newNetCode;                    ///< number that has a *high* chance to be unused
+                                                ///< (to be sure, it is advised to use
+                                                ///< getFreeNetCode() function)
 
     std::vector<D_PAD*>         m_PadsFullList; ///< contains all pads, sorted by pad's netname.
                                                 ///< can be used in ratsnest calculations.
@@ -252,6 +264,8 @@ private:
  */
 class NETINFO_ITEM
 {
+    friend class NETINFO_LIST;
+
 private:
     const int m_NetCode;        ///< A number equivalent to the net name.
                                 ///< Used for fast comparisons in ratsnest and DRC computations.
@@ -271,12 +285,6 @@ private:
     BOARD_ITEM* m_parent;       ///< The parent board item object the net belongs to.
 
 public:
-    int m_NbNodes;                     // Pads count for this net
-    int m_NbLink;                      // Ratsnets count for this net
-    int m_NbNoconn;                    // Ratsnets remaining to route count
-    int m_Flag;                        // used in some calculations. Had no
-                                       // special meaning
-
     std::vector <D_PAD*> m_PadInNetList;    // List of pads connected to this net
 
     unsigned m_RatsnestStartIdx;       /* Starting point of ratsnests of this
@@ -287,7 +295,7 @@ public:
     unsigned m_RatsnestEndIdx;         // Ending point of ratsnests of this net
                                        // (excluded) in this buffer
 
-    NETINFO_ITEM( BOARD_ITEM* aParent, const wxString& aNetName = wxEmptyString, int aNetCode = 0 );
+    NETINFO_ITEM( BOARD_ITEM* aParent, const wxString& aNetName = wxEmptyString, int aNetCode = -1 );
     ~NETINFO_ITEM();
 
     /**
@@ -446,10 +454,6 @@ public:
     {
         m_PadInNetList.clear();
 
-        m_NbNodes           = 0;
-        m_NbLink            = 0;
-        m_NbNoconn          = 0;
-        m_Flag              = 0;
         m_RatsnestStartIdx  = 0;     // Starting point of ratsnests of this net in a
                                      // general buffer of ratsnest
         m_RatsnestEndIdx    = 0;     // Ending point of ratsnests of this net

pcbnew/class_netinfo_item.cpp

@@ -53,10 +53,6 @@ NETINFO_ITEM::NETINFO_ITEM( BOARD_ITEM* aParent, const wxString& aNetName, int a
     m_NetCode( aNetCode ), m_Netname( aNetName ), m_ShortNetname( m_Netname.AfterLast( '/' ) )
 {
     m_parent   = aParent;
-    m_NbNodes  = 0;
-    m_NbLink   = 0;
-    m_NbNoconn = 0;
-    m_Flag     = 0;
     m_RatsnestStartIdx = 0;     // Starting point of ratsnests of this net in a
                                 // general buffer of ratsnest
     m_RatsnestEndIdx   = 0;     // Ending point of ratsnests of this net

pcbnew/class_netinfolist.cpp

@@ -30,25 +30,29 @@ NETINFO_LIST::~NETINFO_LIST()
 
 void NETINFO_LIST::clear()
 {
-    for( unsigned ii = 0; ii < GetNetCount(); ii++ )
-        delete m_NetBuffer[ii];
+    NETNAMES_MAP::iterator it, itEnd;
+    for( it = m_netNames.begin(), itEnd = m_netNames.end(); it != itEnd; ++it )
+        delete it->second;
 
-    m_NetBuffer.clear();
     m_PadsFullList.clear();
     m_netNames.clear();
+    m_netCodes.clear();
 }
 
 
 void NETINFO_LIST::AppendNet( NETINFO_ITEM* aNewElement )
 {
+    // negative net code means that it has to be auto assigned
+    if( aNewElement->m_NetCode < 0 )
+        const_cast<int&>( aNewElement->m_NetCode ) = getFreeNetCode();
+
     // net names & codes are supposed to be unique
     assert( GetNetItem( aNewElement->GetNetname() ) == NULL );
     assert( GetNetItem( aNewElement->GetNet() ) == NULL );
 
-    m_NetBuffer.push_back( aNewElement );
-
     // add an entry for fast look up by a net name using a map
     m_netNames.insert( std::make_pair( aNewElement->GetNetname(), aNewElement ) );
+    m_netCodes.insert( std::make_pair( aNewElement->GetNet(), aNewElement ) );
 }
 
 
@@ -115,11 +119,13 @@ void NETINFO_LIST::buildListOfNets()
 #if defined(DEBUG)
 void NETINFO_LIST::Show() const
 {
-    for( unsigned i=0; i < m_NetBuffer.size();  ++i )
+    int i = 0;
+    NETNAMES_MAP::const_iterator it, itEnd;
+    for( it = m_netNames.begin(), itEnd = m_netNames.end(); it != itEnd; ++it )
     {
         printf( "[%d]: netcode:%d  netname:<%s>\n",
-            i, m_NetBuffer[i]->GetNet(),
-            TO_UTF8( m_NetBuffer[i]->GetNetname() ) );
+            i++, it->second->GetNet(),
+            TO_UTF8( it->second->GetNetname() ) );
     }
 }
 #endif
@@ -164,5 +170,17 @@ void NETINFO_LIST::buildPadsFullList()
 }
 
 
+int NETINFO_LIST::getFreeNetCode() const
+{
+    do {
+        if( m_newNetCode < 0 )
+            m_newNetCode = 0;
+    } while( m_netCodes.count( ++NETINFO_LIST::m_newNetCode ) != 0 );
+
+    return m_newNetCode;
+}
+
+
 const NETINFO_ITEM NETINFO_LIST::ORPHANED = NETINFO_ITEM( NULL, wxString( "orphaned" ), -1 );
 const int NETINFO_LIST::UNCONNECTED = 0;
+int NETINFO_LIST::m_newNetCode = 0;

pcbnew/pcad2kicadpcb_plugin/pcb_pad.cpp

@@ -278,7 +278,7 @@ void PCB_PAD::AddToModule( MODULE* aModule, int aRotation, bool aEncapsulatedPad
         if( netinfo == NULL )   // I believe this should not happen, but just in case
         {
             // It is a new net
-            netinfo = new NETINFO_ITEM( m_board, m_net, m_board->GetNetCount() );
+            netinfo = new NETINFO_ITEM( m_board, m_net );
             m_board->AppendNet( netinfo );
         }