NAME
	  glEdgeFlag, glEdgeFlagv - flag edges as either boundary or
	  nonboundary


     C SPECIFICATION
	  void glEdgeFlag( GLboolean flag )


     PARAMETERS
	  flag	Specifies the current edge flag	value, either GL_TRUE
		or GL_FALSE. The initial value is GL_TRUE.

     C SPECIFICATION
	  void glEdgeFlagv( const GLboolean *flag )


     PARAMETERS
	  flag Specifies a pointer to an array that contains a single
	       boolean element,	which replaces the current edge	flag
	       value.

     DESCRIPTION
	  Each vertex of a polygon, separate triangle, or separate
	  quadrilateral	specified between a glBegin/glEnd pair is
	  marked as the	start of either	a boundary or nonboundary
	  edge.	 If the	current	edge flag is true when the vertex is
	  specified, the vertex	is marked as the start of a boundary
	  edge.	 Otherwise, the	vertex is marked as the	start of a
	  nonboundary edge.  glEdgeFlag	sets the edge flag bit to
	  GL_TRUE if flag is GL_TRUE, and to GL_FALSE otherwise.

	  The vertices of connected triangles and connected
	  quadrilaterals are always marked as boundary,	regardless of
	  the value of the edge	flag.

	  Boundary and nonboundary edge	flags on vertices are
	  significant only if GL_POLYGON_MODE is set to	GL_POINT or
	  GL_LINE.  See	glPolygonMode.

     NOTES
	  The current edge flag	can be updated at any time.  In
	  particular, glEdgeFlag can be	called between a call to
	  glBegin and the corresponding	call to	glEnd.

     ASSOCIATED	GETS
	  glGet	with argument GL_EDGE_FLAG

     SEE ALSO
	  glBegin, glEdgeFlagPointer, glPolygonMode