Infinity
topn = Infinity;
#if Default_TOPN == Infinity
if (topn == Infinity) {
#if Default_TOPN == Infinity
displays = smart_terminal ? Infinity : 1;
if (topn == Infinity) {
#if Default_TOPN == Infinity
if ((i > topn || i == Infinity)
#if Default_TOPN == Infinity
return (Infinity);