added missing operator ==

Circular_kernel_3/doc_tex/Circular_kernel_3_ref/Circular_arc_3.tex

@@ -16,12 +16,11 @@
 {Constructs an arc from a full circle.}
 
 \ccConstructor{Circular_arc_3(const Circle_3<SphericalKernel> &c,
-		const Circular_arc_point_3<SphericalKernel> &p1,
+		const Circular_arc_point_3<SphericalKernel> &p,
-		const Circular_arc_point_3<SphericalKernel> &p2)}
+		const Circular_arc_point_3<SphericalKernel> &q)}
 {Constructs the circular arc supported by \ccc{c}, whose source and target 
-are respectively \ccc{p1} and \ccc{p2}.
+are respectively \ccc{p} and \ccc{q}.
-\ccPrecond{\ccc{p1} and \ccc{p2} lie on \ccc{c}. \ccc{p1} and \ccc{p2} 
+\ccPrecond{\ccc{p} and \ccc{q} lie on \ccc{c} and are different.}}
-are different.}}
 
 The circular arc constructed from a circle, a source, and a target, is
 defined as the set of points of the circle that lie between the source
@@ -66,6 +65,18 @@ source and target both return the smallest $x$-extremal point of the
 circle if the circle is not contained in a plane $x=A$, and the smallest
 $y$-extremal point otherwise.
 
+\ccOperations
+
+\ccFunction{bool operator==(const Circular_arc_3<SphericalKernel> &a1,
+			const Circular_arc_3<SphericalKernel> &a2);}
+{Test for equality. Two arcs are equal, iff the centers and squared
+  radii of their respective supporting circles are equal, and if their
+  source and target are equal.} 
+
+\ccFunction{bool operator!=(const Circular_arc_3<SphericalKernel> &a1,
+			const Circular_arc_3<SphericalKernel> &a2);}
+{Test for nonequality.} 
+
 \ccHeading{I/O}
 
 \ccFunction{istream& operator>> (std::istream& is, Circular_arc_3 & ca);}{}

Circular_kernel_3/doc_tex/Circular_kernel_3_ref/Line_arc_3.tex

@@ -48,7 +48,20 @@ of coordinates.}
 
 \ccQueryFunctions
 
-\ccMethod{bool is_vertical();}{Returns true \ccc{iff} the segment is vertical.}
+\ccMethod{bool is_vertical();}{Returns true \ccc{iff} the segment is
+  vertical.}
+
+\ccOperations
+
+\ccFunction{bool operator==(const Line_arc_3<SphericalKernel> &s1,
+			const Line_arc_3<SphericalKernel> &s2);}
+{Test for equality. Two segments are equal, iff their non-oriented
+  supporting lines are equal (i.e. they define the same set of
+  points), and if their endpoints are the same.}
+
+\ccFunction{bool operator!=(const Line_arc_3<SphericalKernel> &s1,
+			const Line_arc_3<SphericalKernel> &s2);}
+{Test for nonequality.} 
 
 \ccHeading{I/O}