Pcbnew: fix Bug #1255568 (relative to .pos file creation). Minor compil warnings fixes

common/displlst.cpp

@@ -203,7 +203,7 @@ void EDA_LIST_DIALOG::InsertItems( const std::vector< wxArrayString >& itemList,
 
         for( unsigned col = 0; col < itemList[row].GetCount(); col++ )
         {
-            long itemIndex;
+            long itemIndex = 0;
 
             if( col == 0 )
             {

common/math/math_util.cpp

@@ -68,7 +68,7 @@ int64_t rescale( int64_t aNumerator, int64_t aValue, int64_t aDenominator )
         a0 = a0 * b0 + t1a;
         a1 = a1 * b1 + ( t1 >> 32 ) + ( a0 < t1a );
         a0 += r;
-        a1 += ( (uint64_t) a0 ) < r;
+        a1 += a0 < (uint64_t)r;
 
         for( i = 63; i >= 0; i-- )
         {

pcbnew/dialogs/dialog_netlist.cpp

@@ -167,7 +167,7 @@ void DIALOG_NETLIST::OnReadNetlistFileClick( wxCommandEvent& event )
                          "sure you want to read the netlist?" ) ) )
         return;
 
-    wxBusyCursor busy();
+    wxBusyCursor busy;
     m_MessageWindow->Clear();
 
     msg.Printf( _( "Reading netlist file \"%s\".\n" ), GetChars( netlistFileName ) );

pcbnew/gen_modules_placefile.cpp

@@ -200,6 +200,15 @@ bool DIALOG_GEN_MODULE_POSITION::CreateFiles()
     bool singleFile = OneFileOnly();
     int fullcount = 0;
 
+    // Count the footprints to place, do not yet create a file
+    int fpcount = m_parent->DoGenFootprintsPositionFile( wxEmptyString, UnitsMM(),
+                                                         ForceAllSmd(), 2 );
+    if( fpcount == 0)
+    {
+        wxMessageBox( _( "No modules for automated placement." ) );
+        return false;
+    }
+
     fn = m_parent->GetBoard()->GetFileName();
     fn.SetPath( GetOutputDirectory() );
     frontLayerName = brd->GetLayerName( LAYER_N_FRONT );
@@ -208,6 +217,7 @@ bool DIALOG_GEN_MODULE_POSITION::CreateFiles()
     // Create the the Front or Top side placement file,
     // or the single file
     int side = 1;
+
     if( singleFile )
     {
         side = 2;
@@ -218,7 +228,7 @@ bool DIALOG_GEN_MODULE_POSITION::CreateFiles()
 
     fn.SetExt( FootprintPlaceFileExtension );
 
-    int fpcount = m_parent->DoGenFootprintsPositionFile( fn.GetFullPath(), UnitsMM(),
+    fpcount = m_parent->DoGenFootprintsPositionFile( fn.GetFullPath(), UnitsMM(),
                                                      ForceAllSmd(), side );
     if( fpcount < 0 )
     {
@@ -228,12 +238,6 @@ bool DIALOG_GEN_MODULE_POSITION::CreateFiles()
         return false;
     }
 
-    if( fpcount == 0)
-    {
-        wxMessageBox( _( "No modules for automated placement." ) );
-        return false;
-    }
-
     if( singleFile  )
         msg.Printf( _( "Place file: <%s>\n" ), GetChars( fn.GetFullPath() ) );
     else
@@ -339,6 +343,8 @@ void PCB_EDIT_FRAME::GenFootprintsPositionFile( wxCommandEvent& event )
  * aSide = 0 -> Back (bottom) side)
  * aSide = 1 -> Front (top) side)
  * aSide = 2 -> both sides
+ * if aFullFileName is empty, the file is not crated, only the
+ * count of footprints to place is returned
  *
  * The format is:
  *  ### Module positions - created on 04/12/2012 15:24:24 ###
@@ -405,6 +411,9 @@ int PCB_EDIT_FRAME::DoGenFootprintsPositionFile( const wxString& aFullFileName,
         moduleCount++;
     }
 
+    if( aFullFileName.IsEmpty() )
+        return moduleCount;
+
     FILE * file = wxFopen( aFullFileName, wxT( "wt" ) );
     if( file == NULL )
         return -1;

pcbnew/pcad2kicadpcb_plugin/pcb_arc.cpp

@@ -60,8 +60,8 @@ void PCB_ARC::Parse( XNODE*     aNode,
     XNODE*      lNode;
     double      a = 0.0;
     int         r = 0;
-    int         endX;
-    int         endY;
+    int         endX = 0;
+    int         endY = 0;
 
     m_PCadLayer     = aLayer;
     m_KiCadLayer    = GetKiCadLayer();