NAME
    pop - pop a value from front of a list

SYNOPSIS
    pop(lst)

TYPES
    lst		list, &list

    return	any

DESCRIPTION
     This function removes index 0 and returns it.

     This function is equivalent to calling delete(lst, 0).

EXAMPLE
    > lst = list(2,"three")

    list (2 elements, 2 nonzero):
      [[0]] = 2
      [[1]] = "three"

    > pop(lst)
	    2
    > print lst

    list (1 elements, 1 nonzero):
      [[0]] = "three"

    > pop(lst)
	    "three"
    > print lst
    list (0 elements, 0 nonzero)
    > pop(lst)
    > print lst
    list (0 elements, 0 nonzero)

LIMITS
    none

LIBRARY
    none

SEE ALSO
    append, delete, insert, islist, list, push, remove, rsearch, search, size