hello,
for some reason I want to check if one point at spline-creation time is
equal to one point in an array.
More concrete:
There is an array[] of vectors which holds points of one future spline. 
A macro creates a spline from it. While this macro creates spline I wish to
compare if actual processed point hits one predefined point from array[x].

pseudo-code:
>>>>>>>>>>>>>>>>>>>>>>>>
// define spline
#declare splinepoints = array[]{<x,y,z>,...}

// create spline
#declare splinepath = spline{cubic_spline #while...}

// draw balls on splinepath
#macro happyspline(splinepath)
        #while (clock_counter <= maxpoint)
                sphere {
                        splinepath(clock_counter), radius
                }
                // the comparison, which fails:
                #if ( splinepath(clock_counter) = splinepoints[10] )
                        "HIT"
                #end
                clock_counter += anystep
        #end //while
#end //macro
<<<<<<<<<<<<<<<<<<<<<<<<<

Then comes a parse error: "Float expected but vector or color expression
found."
And I ask: Why is splinepath(at_one_moment) no vector? What did I wrong?

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