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From: "Beard, Frank" <beardf@spawar.navy.mil>
Newsgroups: comp.lang.ada
Subject: RE: RISC
Date: Fri, 16 Mar 2001 18:25:26 -0500
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Date: 2001-03-16T18:25:26-05:00

> Does Ada have routines for displaying numbers in Hex or Octal (preferably
> Hex)?

For integers, use the Integer_Io generic in Text_Io:

   package Int_Io is new Ada.Text_Io.Integer_Io(integer);

Procedure Put has the following spec:

   procedure Put(Item  : in Num;
                 Width : in Field := Default_Width;
                 Base  : in Number_Base := Default_Base);

So,

      x : integer := 10;

   begin

      Int_Io.Put(item => x,
                 base => 16);

Outputs an A.

For Modular types, use the Modular_Io generic in Text_Io.

   type Byte is mod 2**8;
   package Mod_Io is new Ada.Text_Io.Modular_Io(Byte);

Procedure Put is defined the same way, as:

   procedure Put(Item  : in Num;
                 Width : in Field := Default_Width;
                 Base  : in Number_Base := Default_Base);

So,

      x : Byte := 10;

   begin

      Mod_Io.Put(item => x,
                 base => 16);

Frank