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Point of view
All features
class INTEGER_RANGE_ITERATOR [E_]
Summary
Direct parents
Inherit list: ITERATOR
Class invariant
Overview
Creation features
{INTEGER_RANGE}
Features
{ANY}
  • start
    Positions the iterator to the first object in the aggregate to be traversed.
  • is_off: BOOLEAN
    Returns True when there are no more objects in the sequence.
  • item: E_
    Returns the object at the current position in the sequence.
  • next
    Positions the iterator to the next object in the sequence.
{}
Read-only, hence always valid
{ANY}
{ANY}
Agent-based features:
{ANY}
Invariant on generation` dynamics
{}
start
effective procedure
{ANY}
Positions the iterator to the first object in the aggregate to be traversed.
ensure
  • is_valid
is_off: BOOLEAN
effective function
{ANY}
Returns True when there are no more objects in the sequence.
require
  • is_valid
ensure
  • generation = old generation
  • is_valid
item: E_
effective function
{ANY}
Returns the object at the current position in the sequence.
require
  • is_valid
  • not is_off
ensure
  • generation = old generation
  • is_valid
next
effective procedure
{ANY}
Positions the iterator to the next object in the sequence.
require
  • is_valid
  • not is_off
ensure
  • generation = old generation
  • is_valid
lower: INTEGER_32
writable attribute
{}
upper: INTEGER_32
writable attribute
{}
item_: INTEGER_32
writable attribute
{}
make (low: INTEGER_32, up: INTEGER_32, a_itemize: FUNCTION[TUPLE[TUPLE 1[INTEGER_32], E_]])
effective procedure
{}
require
  • low <= up
  • a_itemize /= Void
ensure
itemize: FUNCTION[TUPLE[TUPLE 1[INTEGER_32], E_]]
writable attribute
{}
iterable_generation: INTEGER_32
is 0
constant attribute
{ANY}
generation: INTEGER_32
is 0
constant attribute
{ANY}
is_valid: BOOLEAN
frozen
effective function
{ANY}
for_each (action: PROCEDURE[TUPLE[TUPLE 1[E_]]])
effective procedure
{ANY}
Apply action to every item of Current.
See also for_all, exists, aggregate.
for_all (test: FUNCTION[TUPLE[TUPLE 1[E_]]]): BOOLEAN
effective function
{ANY}
Do all items satisfy test?
See also for_each, exists, aggregate.
exists (test: FUNCTION[TUPLE[TUPLE 1[E_]]]): BOOLEAN
effective function
{ANY}
Does at least one item satisfy test?
See also for_each, for_all, aggregate.
aggregate (action: FUNCTION[TUPLE[TUPLE 2[E_, E_], E_]], initial: E_): E_
effective function
{ANY}
Aggregate all the elements starting from the initial value.
See also for_each, for_all, exists.
generation_for_invariant: INTEGER_32
writable attribute
{}
generation_only_grows: BOOLEAN
effective function
{}