diff --git a/src/GC/GC_MakeArcOfCircle.cxx b/src/GC/GC_MakeArcOfCircle.cxx
index 9b88a58093..41d22e2f75 100644
--- a/src/GC/GC_MakeArcOfCircle.cxx
+++ b/src/GC/GC_MakeArcOfCircle.cxx
@@ -158,7 +158,7 @@ GC_MakeArcOfCircle::GC_MakeArcOfCircle(const gp_Circ& Circ   ,
 //=======================================================================
 const Handle(Geom_TrimmedCurve)& GC_MakeArcOfCircle::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheArc;
 }
 //=======================================================================
diff --git a/src/GC/GC_MakeArcOfEllipse.cxx b/src/GC/GC_MakeArcOfEllipse.cxx
index c6b39d46c8..fc859d838c 100644
--- a/src/GC/GC_MakeArcOfEllipse.cxx
+++ b/src/GC/GC_MakeArcOfEllipse.cxx
@@ -54,7 +54,7 @@ GC_MakeArcOfEllipse::GC_MakeArcOfEllipse(const gp_Elips& Elips   ,
 
 const Handle(Geom_TrimmedCurve)& GC_MakeArcOfEllipse::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheArc;
 }
 
diff --git a/src/GC/GC_MakeArcOfHyperbola.cxx b/src/GC/GC_MakeArcOfHyperbola.cxx
index ed95e3f6e7..26bf6454e2 100644
--- a/src/GC/GC_MakeArcOfHyperbola.cxx
+++ b/src/GC/GC_MakeArcOfHyperbola.cxx
@@ -55,7 +55,7 @@ GC_MakeArcOfHyperbola::GC_MakeArcOfHyperbola(const gp_Hypr&        Hypr   ,
 
 const Handle(Geom_TrimmedCurve)& GC_MakeArcOfHyperbola::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheArc;
 }
 
diff --git a/src/GC/GC_MakeArcOfParabola.cxx b/src/GC/GC_MakeArcOfParabola.cxx
index 69c5c31d16..acb1d0059a 100644
--- a/src/GC/GC_MakeArcOfParabola.cxx
+++ b/src/GC/GC_MakeArcOfParabola.cxx
@@ -54,7 +54,7 @@ GC_MakeArcOfParabola::GC_MakeArcOfParabola(const gp_Parab& Parab ,
 
 const Handle(Geom_TrimmedCurve)& GC_MakeArcOfParabola::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheArc;
 }
 
diff --git a/src/GC/GC_MakeCircle.cxx b/src/GC/GC_MakeCircle.cxx
index 3aa1e451bb..3caac6715f 100644
--- a/src/GC/GC_MakeCircle.cxx
+++ b/src/GC/GC_MakeCircle.cxx
@@ -97,7 +97,7 @@ GC_MakeCircle::GC_MakeCircle(const gp_Ax1& Axis   ,
 
 const Handle(Geom_Circle)& GC_MakeCircle::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheCircle;
 }
 
diff --git a/src/GC/GC_MakeConicalSurface.cxx b/src/GC/GC_MakeConicalSurface.cxx
index 357baca627..aa8546c4bc 100644
--- a/src/GC/GC_MakeConicalSurface.cxx
+++ b/src/GC/GC_MakeConicalSurface.cxx
@@ -105,7 +105,7 @@ GC_MakeConicalSurface::GC_MakeConicalSurface(const gp_Pnt&       P1 ,
 
 const Handle(Geom_ConicalSurface)& GC_MakeConicalSurface::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheCone;
 }
 
diff --git a/src/GC/GC_MakeCylindricalSurface.cxx b/src/GC/GC_MakeCylindricalSurface.cxx
index 39983c6382..9d8a9a6177 100644
--- a/src/GC/GC_MakeCylindricalSurface.cxx
+++ b/src/GC/GC_MakeCylindricalSurface.cxx
@@ -98,7 +98,7 @@ GC_MakeCylindricalSurface::GC_MakeCylindricalSurface(const gp_Cylinder& Cyl ,
 const Handle(Geom_CylindricalSurface)& 
        GC_MakeCylindricalSurface::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheCylinder;
 }
 
diff --git a/src/GC/GC_MakeEllipse.cxx b/src/GC/GC_MakeEllipse.cxx
index 637d2af0d5..9e61d842b9 100644
--- a/src/GC/GC_MakeEllipse.cxx
+++ b/src/GC/GC_MakeEllipse.cxx
@@ -48,7 +48,7 @@ GC_MakeEllipse::GC_MakeEllipse(const gp_Pnt& S1     ,
 
 const Handle(Geom_Ellipse)& GC_MakeEllipse::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheEllipse;
 }
 
diff --git a/src/GC/GC_MakeHyperbola.cxx b/src/GC/GC_MakeHyperbola.cxx
index 5821767ae2..d9cb1999e3 100644
--- a/src/GC/GC_MakeHyperbola.cxx
+++ b/src/GC/GC_MakeHyperbola.cxx
@@ -47,7 +47,7 @@ GC_MakeHyperbola::GC_MakeHyperbola(const gp_Pnt& S1     ,
 
 const Handle(Geom_Hyperbola)& GC_MakeHyperbola::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheHyperbola;
 }
 
diff --git a/src/GC/GC_MakeLine.cxx b/src/GC/GC_MakeLine.cxx
index cfa48eb2c6..617f291fea 100644
--- a/src/GC/GC_MakeLine.cxx
+++ b/src/GC/GC_MakeLine.cxx
@@ -63,7 +63,7 @@ GC_MakeLine::GC_MakeLine(const gp_Lin& Lin   ,
 
 const Handle(Geom_Line)& GC_MakeLine::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheLine;
 }
 
diff --git a/src/GC/GC_MakePlane.cxx b/src/GC/GC_MakePlane.cxx
index f98d3391f7..88232f5a84 100644
--- a/src/GC/GC_MakePlane.cxx
+++ b/src/GC/GC_MakePlane.cxx
@@ -119,7 +119,7 @@ GC_MakePlane::GC_MakePlane(const gp_Ax1& Axis ) {
 
 const Handle(Geom_Plane)& GC_MakePlane::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return ThePlane;
 }
 
diff --git a/src/GC/GC_MakeSegment.cxx b/src/GC/GC_MakeSegment.cxx
index 13e6eaca46..35589b637b 100644
--- a/src/GC/GC_MakeSegment.cxx
+++ b/src/GC/GC_MakeSegment.cxx
@@ -61,7 +61,7 @@ GC_MakeSegment::GC_MakeSegment(const gp_Lin& Line  ,
 
 const Handle(Geom_TrimmedCurve)& GC_MakeSegment::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheSegment;
 }
 
diff --git a/src/GC/GC_MakeTrimmedCone.cxx b/src/GC/GC_MakeTrimmedCone.cxx
index e708d6e22a..a4beefe72d 100644
--- a/src/GC/GC_MakeTrimmedCone.cxx
+++ b/src/GC/GC_MakeTrimmedCone.cxx
@@ -73,7 +73,7 @@ GC_MakeTrimmedCone::GC_MakeTrimmedCone(const gp_Pnt&       P1 ,
 const Handle(Geom_RectangularTrimmedSurface)& GC_MakeTrimmedCone::
        Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheCone;
 }
 
diff --git a/src/GC/GC_MakeTrimmedCylinder.cxx b/src/GC/GC_MakeTrimmedCylinder.cxx
index 269df86f79..2aac425b11 100644
--- a/src/GC/GC_MakeTrimmedCylinder.cxx
+++ b/src/GC/GC_MakeTrimmedCylinder.cxx
@@ -82,7 +82,7 @@ GC_MakeTrimmedCylinder::GC_MakeTrimmedCylinder(const gp_Cylinder& , // Cyl,
 const Handle(Geom_RectangularTrimmedSurface)& GC_MakeTrimmedCylinder::
        Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheCyl;
 }
 
diff --git a/src/GCE2d/GCE2d_MakeArcOfCircle.cxx b/src/GCE2d/GCE2d_MakeArcOfCircle.cxx
index 4f1da0bcda..0988646caa 100644
--- a/src/GCE2d/GCE2d_MakeArcOfCircle.cxx
+++ b/src/GCE2d/GCE2d_MakeArcOfCircle.cxx
@@ -111,7 +111,7 @@ GCE2d_MakeArcOfCircle::GCE2d_MakeArcOfCircle(const gp_Circ2d&       Circ   ,
 
 const Handle(Geom2d_TrimmedCurve)& GCE2d_MakeArcOfCircle::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheArc;
 }
 
diff --git a/src/GCE2d/GCE2d_MakeArcOfEllipse.cxx b/src/GCE2d/GCE2d_MakeArcOfEllipse.cxx
index 1bb9acf7a1..07fbd2fcfc 100644
--- a/src/GCE2d/GCE2d_MakeArcOfEllipse.cxx
+++ b/src/GCE2d/GCE2d_MakeArcOfEllipse.cxx
@@ -54,7 +54,7 @@ GCE2d_MakeArcOfEllipse::GCE2d_MakeArcOfEllipse(const gp_Elips2d&      Elips  ,
 
 const Handle(Geom2d_TrimmedCurve)& GCE2d_MakeArcOfEllipse::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheArc;
 }
 
diff --git a/src/GCE2d/GCE2d_MakeArcOfHyperbola.cxx b/src/GCE2d/GCE2d_MakeArcOfHyperbola.cxx
index 668185d12d..d981da8a58 100644
--- a/src/GCE2d/GCE2d_MakeArcOfHyperbola.cxx
+++ b/src/GCE2d/GCE2d_MakeArcOfHyperbola.cxx
@@ -56,7 +56,7 @@ GCE2d_MakeArcOfHyperbola::
 
 const Handle(Geom2d_TrimmedCurve)& GCE2d_MakeArcOfHyperbola::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheArc;
 }
 
diff --git a/src/GCE2d/GCE2d_MakeArcOfParabola.cxx b/src/GCE2d/GCE2d_MakeArcOfParabola.cxx
index 47c9048eca..613e6e2503 100644
--- a/src/GCE2d/GCE2d_MakeArcOfParabola.cxx
+++ b/src/GCE2d/GCE2d_MakeArcOfParabola.cxx
@@ -55,7 +55,7 @@ GCE2d_MakeArcOfParabola::
 
 const Handle(Geom2d_TrimmedCurve)& GCE2d_MakeArcOfParabola::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheArc;
 }
 
diff --git a/src/GCE2d/GCE2d_MakeCircle.cxx b/src/GCE2d/GCE2d_MakeCircle.cxx
index 1a08db836a..d8058e7041 100644
--- a/src/GCE2d/GCE2d_MakeCircle.cxx
+++ b/src/GCE2d/GCE2d_MakeCircle.cxx
@@ -100,7 +100,7 @@ GCE2d_MakeCircle::GCE2d_MakeCircle(const gp_Pnt2d&        Center ,
 
 const Handle(Geom2d_Circle)& GCE2d_MakeCircle::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheCircle;
 }
 
diff --git a/src/GCE2d/GCE2d_MakeEllipse.cxx b/src/GCE2d/GCE2d_MakeEllipse.cxx
index 962b01753a..4800102d74 100644
--- a/src/GCE2d/GCE2d_MakeEllipse.cxx
+++ b/src/GCE2d/GCE2d_MakeEllipse.cxx
@@ -59,7 +59,7 @@ GCE2d_MakeEllipse::GCE2d_MakeEllipse(const gp_Pnt2d& S1     ,
 
 const Handle(Geom2d_Ellipse)& GCE2d_MakeEllipse::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheEllipse;
 }
 
diff --git a/src/GCE2d/GCE2d_MakeHyperbola.cxx b/src/GCE2d/GCE2d_MakeHyperbola.cxx
index 55a6ef230d..714edf30ee 100644
--- a/src/GCE2d/GCE2d_MakeHyperbola.cxx
+++ b/src/GCE2d/GCE2d_MakeHyperbola.cxx
@@ -59,7 +59,7 @@ GCE2d_MakeHyperbola::GCE2d_MakeHyperbola(const gp_Pnt2d& S1     ,
 
 const Handle(Geom2d_Hyperbola)& GCE2d_MakeHyperbola::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheHyperbola;
 }
 
diff --git a/src/GCE2d/GCE2d_MakeLine.cxx b/src/GCE2d/GCE2d_MakeLine.cxx
index 043b8b9e51..a3122da17e 100644
--- a/src/GCE2d/GCE2d_MakeLine.cxx
+++ b/src/GCE2d/GCE2d_MakeLine.cxx
@@ -73,7 +73,7 @@ GCE2d_MakeLine::GCE2d_MakeLine(const gp_Lin2d&     Lin  ,
 
 const Handle(Geom2d_Line)& GCE2d_MakeLine::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheLine;
 }
 
diff --git a/src/GCE2d/GCE2d_MakeParabola.cxx b/src/GCE2d/GCE2d_MakeParabola.cxx
index 823459da54..381ee1f680 100644
--- a/src/GCE2d/GCE2d_MakeParabola.cxx
+++ b/src/GCE2d/GCE2d_MakeParabola.cxx
@@ -74,7 +74,7 @@ GCE2d_MakeParabola::GCE2d_MakeParabola(const gp_Pnt2d& S1 ,
 
 const Handle(Geom2d_Parabola)& GCE2d_MakeParabola::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheParabola;
 }
 
diff --git a/src/GCE2d/GCE2d_MakeSegment.cxx b/src/GCE2d/GCE2d_MakeSegment.cxx
index 2d4fc0c5db..406017816b 100644
--- a/src/GCE2d/GCE2d_MakeSegment.cxx
+++ b/src/GCE2d/GCE2d_MakeSegment.cxx
@@ -77,7 +77,7 @@ GCE2d_MakeSegment::GCE2d_MakeSegment(const gp_Lin2d&     Line  ,
 
 const Handle(Geom2d_TrimmedCurve)& GCE2d_MakeSegment::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheSegment;
 }
 
diff --git a/src/gce/gce_MakeCirc.cxx b/src/gce/gce_MakeCirc.cxx
index 063b21f85a..ffd34e4a89 100644
--- a/src/gce/gce_MakeCirc.cxx
+++ b/src/gce/gce_MakeCirc.cxx
@@ -338,7 +338,7 @@ gce_MakeCirc::gce_MakeCirc(const gp_Circ& Circ ,
 //=======================================================================
 const gp_Circ& gce_MakeCirc::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheCirc;
 }
 //=======================================================================
diff --git a/src/gce/gce_MakeCirc2d.cxx b/src/gce/gce_MakeCirc2d.cxx
index 3c56740c34..a1bd93dfe6 100644
--- a/src/gce/gce_MakeCirc2d.cxx
+++ b/src/gce/gce_MakeCirc2d.cxx
@@ -202,7 +202,7 @@ gce_MakeCirc2d::gce_MakeCirc2d(const gp_Circ2d&    Circ  ,
 
 const gp_Circ2d& gce_MakeCirc2d::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheCirc2d;
 }
 
diff --git a/src/gce/gce_MakeCone.cxx b/src/gce/gce_MakeCone.cxx
index 3d0bf9fb17..abc4fbe815 100644
--- a/src/gce/gce_MakeCone.cxx
+++ b/src/gce/gce_MakeCone.cxx
@@ -198,7 +198,7 @@ gce_MakeCone::gce_MakeCone(const gp_Pnt&       P1   ,
 
 const gp_Cone& gce_MakeCone::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheCone;
 }
 
diff --git a/src/gce/gce_MakeCylinder.cxx b/src/gce/gce_MakeCylinder.cxx
index d010b6ff77..379c96945c 100644
--- a/src/gce/gce_MakeCylinder.cxx
+++ b/src/gce/gce_MakeCylinder.cxx
@@ -126,7 +126,7 @@ gce_MakeCylinder::gce_MakeCylinder(const gp_Cylinder& Cyl ,
 
 const gp_Cylinder& gce_MakeCylinder::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheCylinder;
 }
 
diff --git a/src/gce/gce_MakeDir.cxx b/src/gce/gce_MakeDir.cxx
index 607b5ef09d..8a36205fcb 100644
--- a/src/gce/gce_MakeDir.cxx
+++ b/src/gce/gce_MakeDir.cxx
@@ -63,7 +63,7 @@ gce_MakeDir::gce_MakeDir(const Standard_Real Xv,
 
 const gp_Dir& gce_MakeDir::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheDir;
 }
 
diff --git a/src/gce/gce_MakeDir2d.cxx b/src/gce/gce_MakeDir2d.cxx
index 92361789a5..107b7d356f 100644
--- a/src/gce/gce_MakeDir2d.cxx
+++ b/src/gce/gce_MakeDir2d.cxx
@@ -62,7 +62,7 @@ gce_MakeDir2d::gce_MakeDir2d(const Standard_Real Xv,
 
 const gp_Dir2d& gce_MakeDir2d::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheDir2d;
 }
 
diff --git a/src/gce/gce_MakeElips.cxx b/src/gce/gce_MakeElips.cxx
index c79f572a8a..9916e211dc 100644
--- a/src/gce/gce_MakeElips.cxx
+++ b/src/gce/gce_MakeElips.cxx
@@ -63,7 +63,7 @@ gce_MakeElips::gce_MakeElips(const gp_Pnt&   S1     ,
 
 const gp_Elips& gce_MakeElips::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheElips;
 }
 
diff --git a/src/gce/gce_MakeElips2d.cxx b/src/gce/gce_MakeElips2d.cxx
index 90a193b7ed..ebdeb58c9c 100644
--- a/src/gce/gce_MakeElips2d.cxx
+++ b/src/gce/gce_MakeElips2d.cxx
@@ -69,7 +69,7 @@ gce_MakeElips2d::gce_MakeElips2d(const gp_Ax22d&     A           ,
 
 const gp_Elips2d& gce_MakeElips2d::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheElips2d;
 }
 
diff --git a/src/gce/gce_MakeHypr.cxx b/src/gce/gce_MakeHypr.cxx
index 75a860885f..c353741552 100644
--- a/src/gce/gce_MakeHypr.cxx
+++ b/src/gce/gce_MakeHypr.cxx
@@ -55,7 +55,7 @@ gce_MakeHypr::gce_MakeHypr(const gp_Ax2&       A2          ,
 
 const gp_Hypr& gce_MakeHypr::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheHypr;
 }
 
diff --git a/src/gce/gce_MakeHypr2d.cxx b/src/gce/gce_MakeHypr2d.cxx
index a89aa446bc..08595aa1b3 100644
--- a/src/gce/gce_MakeHypr2d.cxx
+++ b/src/gce/gce_MakeHypr2d.cxx
@@ -67,7 +67,7 @@ gce_MakeHypr2d::gce_MakeHypr2d(const gp_Ax22d&     A           ,
 
 const gp_Hypr2d& gce_MakeHypr2d::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheHypr2d;
 }
 
diff --git a/src/gce/gce_MakeLin.cxx b/src/gce/gce_MakeLin.cxx
index 8c942daec2..59eabbd444 100644
--- a/src/gce/gce_MakeLin.cxx
+++ b/src/gce/gce_MakeLin.cxx
@@ -69,7 +69,7 @@ gce_MakeLin::gce_MakeLin(const gp_Lin& Lin ,
 
 const gp_Lin& gce_MakeLin::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheLin;
 }
 
diff --git a/src/gce/gce_MakeLin2d.cxx b/src/gce/gce_MakeLin2d.cxx
index 6d002b15e0..892b0349f7 100644
--- a/src/gce/gce_MakeLin2d.cxx
+++ b/src/gce/gce_MakeLin2d.cxx
@@ -103,7 +103,7 @@ gce_MakeLin2d::gce_MakeLin2d(const gp_Lin2d&     Line,
 
 gp_Lin2d gce_MakeLin2d::Value() const
 { 
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheLin2d;
 }
 
diff --git a/src/gce/gce_MakeParab.cxx b/src/gce/gce_MakeParab.cxx
index b1bf0863e7..9c1481530d 100644
--- a/src/gce/gce_MakeParab.cxx
+++ b/src/gce/gce_MakeParab.cxx
@@ -37,7 +37,7 @@ gce_MakeParab::gce_MakeParab(const gp_Ax1& D ,
 
 const gp_Parab& gce_MakeParab::Value () const
 {
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheParab;
 }
 
diff --git a/src/gce/gce_MakeParab2d.cxx b/src/gce/gce_MakeParab2d.cxx
index 93d6e5f0c3..61f586b543 100644
--- a/src/gce/gce_MakeParab2d.cxx
+++ b/src/gce/gce_MakeParab2d.cxx
@@ -75,7 +75,7 @@ gce_MakeParab2d::gce_MakeParab2d(const gp_Pnt2d&        S      ,
 
 const gp_Parab2d& gce_MakeParab2d::Value () const
 {
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return TheParab2d;
 }
 
diff --git a/src/gce/gce_MakePln.cxx b/src/gce/gce_MakePln.cxx
index c002352b9a..8aeadab78f 100644
--- a/src/gce/gce_MakePln.cxx
+++ b/src/gce/gce_MakePln.cxx
@@ -124,7 +124,7 @@ gce_MakePln::gce_MakePln(const gp_Ax1& Axis )
 */
 const gp_Pln& gce_MakePln::Value () const
 {
-  StdFail_NotDone_Raise_if(!TheError == gce_Done,"");
+  StdFail_NotDone_Raise_if(TheError != gce_Done,"");
   return ThePln;
 }