Fixed comments Made iterators const in 'count()' Fixed trailing guard macro
Fixed comments
Made iterators const in 'count()'
Fixed trailing guard macro

ETLCPP/etl,ETLCPP/etl,venkatarajasekhar/etl,venkatarajasekhar/etl,ETLCPP/etl,venkatarajasekhar/etl,ETLCPP/etl