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11.3.6 Data Type Generic List Front Functions

l_front

object l_front(list l);

is the data in the first position in the l list

l_insert

void l_insert(list l, object o);

inserts data of the type and value described by the o object in the first position in the l list

lf_pick

object lf_pick(list l);

is the data in the first position in the l list, the data is removed from the list

lf_query

object lf_query(list l);

is the data in the first position in the l list (same as ‘l_front’)