component sel3 "select one of three inputs";
pin in  float in0   "input value 0";
pin in  float in1   "input value 1";
pin in  float in2   "input value 2";
pin in  bit   en0   "select value 0";
pin in  bit   en1   "if 0 not selected select value 1";
pin in  bit   en2   "if 0 or 1 not selected select value 2";
pin out float out   "selected output or 0 if none selected";
function _;
license "GPL";      // indicates GPL v2 or later
;;
FUNCTION(_){
    if(en0)
        out = in0;
    else if(en1)
        out = in1;
    else if(en2)
        out = in2;
    else
        out = 0;
}