DataMuseum.dk

Presents historical artifacts from the history of:

Rational R1000/400

This is an automatic "excavation" of a thematic subset of
artifacts from Datamuseum.dk's BitArchive.

See our Wiki for more about Rational R1000/400

Excavated with: AutoArchaeologist - Free & Open Source Software.


top - download

⟦3e1be14d2⟧ Ada Source

    Length: 3072 (0xc00)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, generic, package Item_Count, seg_0046c7

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─ ⟦5a81ac88f⟧ »Space Info Vol 1« 
        └─⟦this⟧ 

E3 Source Code



--| @SUMMARY Provides the ability to count the number of occurances
--| of an item.
--| @INDICES (COUNTING)
with Map_Generic;
generic
    Size : Positive;
    type Item is private;
    with function Hash (An_Item : Item) return Integer;
package Item_Count is

    type Data_Base is private;

    procedure Initialize (Db : in out Data_Base);

    --| @DESCRIPTION Adds the item if it is new and sets it count to 1
    --| Increments the count if it is not new.
    --|
    procedure Add (An_Item : Item; To : in out Data_Base);

    type Item_Iterator is private;

    function  Done  (Iter : Item_Iterator) return Boolean;
    function  Value (Iter : Item_Iterator) return Item;
    procedure Next  (Iter : in out Item_Iterator);

    --| @DESCRIPTION Returns the number of times the item was added to
    --| the database
    --| @RAISES (Item_Not_Found)
    function Total (For_Item : Item; From : Data_Base) return Positive;

    --| @DESCRIPTION Raised if the item has never been added to the database
    Item_Not_Found : exception;
private
    type Data is range 1 .. Integer'Last;

    package Data_Map is new Map_Generic (Size, Item, Data, Hash);

    type Data_Base is new Data_Map.Map;

    type Item_Iterator is new Data_Map.Iterator;

end Item_Count;

E3 Meta Data

    nblk1=2
    nid=0
    hdr6=4
        [0x00] rec0=20 rec1=00 rec2=01 rec3=030
        [0x01] rec0=0c rec1=00 rec2=02 rec3=000
    tail 0x215004a8c815c6706c2fc 0x42a00088462061e03