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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Using the Hash function
Date: Thu, 21 Jul 2011 15:57:53 +0100
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Date: 2011-07-21T15:57:53+01:00
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iloAda <egzgheib@gmail.com> writes:

> Hello everybody!!
>
> I am trying to use the hash function of the Unbounded_Strings package!
>
> Here's the code (very simple):
>
> 1   function Unbounded_String_Hash
> 2    (U_Str : Ada.Strings.Unbounded.Unbounded_String)
> 3      return Ada.Containers.Hash_Type
> 4   is
> 5
> 6   begin
> 7
> 8    return Ada.Strings.Unbounded.Hash (U_Str);
> 9   end Unbounded_String_Hash;
>
> I is giving me the following error on line 8 when I try to compile:
> missing "with Unbounded.Hash";
>
>
> Can anybody tell me what's going on (knowing that Unbounded.Hash isn(t
> an existing package)!!
>
> Thanks
>
> Elie

You need to say

   with Ada.Strings.Unbounded.Hash;

as well as Ada.Containers.