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/BinMDataStd/BinMDataStd_ByteArrayDriver.cxx

@@ -76,7 +76,7 @@ Standard_Boolean BinMDataStd_ByteArrayDriver::Paste(const BinObjMgt_Persistent&
     if (! (theSource >> aDeltaValue))
       return Standard_False;
     else
-      aDelta = (Standard_Boolean)aDeltaValue;
+      aDelta = (aDeltaValue != 0);
   }
   anAtt->SetDelta(aDelta);
   return Standard_True;
@@ -106,5 +106,5 @@ void BinMDataStd_ByteArrayDriver::Paste(const Handle(TDF_Attribute)& theSource,
   }
   Standard_Byte *aPtr = (Standard_Byte *) &aSourceArray(lower);
   theTarget.PutByteArray(aPtr, bytes->Length());
-  theTarget << (Standard_Byte)anAtt->GetDelta();
+  theTarget << (Standard_Byte)(anAtt->GetDelta() ? 1 : 0);
 }

src/BinMDataStd/BinMDataStd_ExtStringArrayDriver.cxx

@@ -87,7 +87,7 @@ Standard_Boolean BinMDataStd_ExtStringArrayDriver::Paste
 	    return Standard_False;
 	  }
       else
-	aDelta = (Standard_Boolean)aDeltaValue;
+	aDelta = (aDeltaValue != 0);
 	}
     anAtt->SetDelta(aDelta);
   }
@@ -113,5 +113,5 @@ void BinMDataStd_ExtStringArrayDriver::Paste
   for (Standard_Integer i = aFirstInd; i <= aLastInd; i ++)
     theTarget << anAtt->Value( i );
 
-  theTarget << (Standard_Byte)anAtt->GetDelta();
+  theTarget << (Standard_Byte)(anAtt->GetDelta() ? 1 : 0);
 }

src/BinMDataStd/BinMDataStd_IntPackedMapDriver.cxx

@@ -92,7 +92,7 @@ Standard_Boolean BinMDataStd_IntPackedMapDriver::Paste
     if (! (Source >> aDeltaValue))
       return Standard_False;
     else
-      aDelta = (Standard_Boolean)aDeltaValue;
+      aDelta = (aDeltaValue != 0);
   }
   aTagAtt->SetDelta(aDelta);
   return Standard_True;
@@ -120,5 +120,5 @@ void BinMDataStd_IntPackedMapDriver::Paste
     for(;anIt.More();anIt.Next())
       Target << anIt.Key();
   }
-  Target << (Standard_Byte)anAtt->GetDelta(); 
+  Target << (Standard_Byte)(anAtt->GetDelta() ? 1 : 0);
 }

src/BinMDataStd/BinMDataStd_IntegerArrayDriver.cxx

@@ -74,7 +74,7 @@ Standard_Boolean BinMDataStd_IntegerArrayDriver::Paste
     if (! (theSource >> aDeltaValue))
       return Standard_False;
     else
-      aDelta = (Standard_Boolean)aDeltaValue;
+      aDelta = (aDeltaValue != 0);
   }
 #ifdef OCCT_DEBUG
   else if(BinMDataStd::DocumentVersion() == -1)
@@ -103,5 +103,5 @@ void BinMDataStd_IntegerArrayDriver::Paste
   theTarget << aFirstInd << aLastInd;
   Standard_Integer *aPtr = (Standard_Integer *) &aSourceArray(aFirstInd);
   theTarget.PutIntArray (aPtr, aLength);
-  theTarget << (Standard_Byte)anAtt->GetDelta(); 
+  theTarget << (Standard_Byte)(anAtt->GetDelta() ? 1 : 0);
 }

src/BinMDataStd/BinMDataStd_RealArrayDriver.cxx

@@ -75,7 +75,7 @@ Standard_Boolean BinMDataStd_RealArrayDriver::Paste
     if (! (theSource >> aDeltaValue))
       return Standard_False;
     else
-      aDelta = (Standard_Boolean)aDeltaValue;
+      aDelta = (aDeltaValue != 0);
   }
   anAtt->SetDelta(aDelta);
   return Standard_True; 
@@ -100,5 +100,5 @@ void BinMDataStd_RealArrayDriver::Paste
   theTarget << aFirstInd << aLastInd;
   Standard_Real *aPtr = (Standard_Real *) &aSourceArray(aFirstInd);
   theTarget.PutRealArray (aPtr, aLength);
-  theTarget << (Standard_Byte)anAtt->GetDelta(); 
+  theTarget << (Standard_Byte)(anAtt->GetDelta() ? 1 : 0);
 }