0027772: Foundation Classes - define Standard_Boolean using C++ type "bool" instead of "unsigned int"

Code has been updated to remove no-op casts and implicit casts to Standard_Boolean.

Places of inproper use of Standard_Boolean instead of Standard_Integer
have been corrected:
- Bnd_Box, Bnd_Box2d
  Bit flags are now defined as private enum
- HLRAlgo_BiPoint, HLRAlgo_EdgesBlock, HLRBRep_EdgeData, HLRBRep_FaceData
  Bit flags are now defined as enum
- HLRAlgo_EdgeStatus, HLRBRep_BiPnt2D, HLRBRep_BiPoint
  Bit flags are now defined as bool fields
- HLRAlgo_PolyData
  Bit flags are now defined as Standard_Integer
- OSD_DirectoryIterator, OSD_FileIterator
  Boolean flag is now defined as Standard_Boolean
- ShapeAnalysis_Surface::SurfaceNewton()
  now returns Standard_Integer (values 0, 1 or 3)
- ChFi2d_FilletAlgo
  now uses TColStd_SequenceOfBoolean instead of TColStd_SequenceOfInteger
  for storing boolean flags

Method IFSelect_Dispatch::PacketsCount() has been dropped from interface.

ShapeFix_Solid::Status() has been fixed to decode requested status
instead of returning integer value.

TopOpeBRepBuild_Builder1 now defines map storing Standard_Boolean values
instead of Standard_Integer.

Persistence for Standard_Boolean type has been corrected
to keep backward compatibility:
- BinMDataStd, BinTools, FSD_BinaryFile

Broken Draw Harness commands vdisplaymode and verasemode have been removed.

BRepMesh_FastDiscretFace::initDataStructure() - workaround old gcc limitations

BRepMesh_IncrementalMesh::clear() - avoid ambiguity

src/StdLPersistent/StdLPersistent_Collection.cxx

@@ -33,6 +33,14 @@ struct StdLPersistent_Collection::byteConverter
     { return static_cast<Standard_Byte> (theValue); }
 };
 
+struct StdLPersistent_Collection::boolConverter
+{
+  boolConverter (const Handle(TDF_Data)&) {}
+
+  Standard_Boolean operator() (Standard_Integer theValue) const
+    { return theValue != 0; }
+};
+
 struct StdLPersistent_Collection::stringConverter
 {
   stringConverter (const Handle(TDF_Data)&) {}
@@ -222,7 +230,7 @@ template class StdLPersistent_Collection::instance
   <StdLPersistent_Collection::listBase,
    StdLPersistent_Collection::integer,
    TDataStd_BooleanList,
-   StdLPersistent_Collection::noConversion>;
+   StdLPersistent_Collection::boolConverter>;
 
 template class StdLPersistent_Collection::instance
   <StdLPersistent_Collection::listBase,

src/StdLPersistent/StdLPersistent_Collection.hxx

@@ -37,6 +37,7 @@ class StdLPersistent_Collection
   // Converters
   struct noConversion;
   struct byteConverter;
+  struct boolConverter;
   struct stringConverter;
   struct referenceConverter;
 
@@ -175,7 +176,7 @@ public:
   typedef listT <real, TDataStd_RealList>
     RealList;
 
-  typedef listT <integer, TDataStd_BooleanList>
+  typedef listT <integer, TDataStd_BooleanList, boolConverter>
     BooleanList;
 
   typedef listT <persistent, TDataStd_ExtStringList, stringConverter>