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From: Shark8 <OneWingedShark@gmail.com>
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Newsgroups: comp.lang.ada
Subject: Re: comparing characters in string
References: <af79bb16-617e-46b6-b0b6-dae39a2089f8@googlegroups.com>
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NNTP-Posting-Date: Sun, 05 Oct 2014 12:16:14 UTC
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Date: Sun, 05 Oct 2014 05:16:14 -0700
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Date: 2014-10-05T05:16:14-07:00
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On 10/5/2014 12:06 AM, Simon Wright wrote:
> Shark8 <OneWingedShark@gmail.com> writes:
>
>>       function tt (a, b  : in String) return Boolean is
>>         Target    : Character renames a(a'first);
>>         Found     : Constant Boolean:= True;
>>         Substring : constant String:= b(b'first+1..b'last);
>>       begin
>>         return (if (for some Ch of Substring => Ch = Target) then Found
>>                 else not Found);
>>       end tt;
>
> Couldn't that just be
>
>     function tt (a, b  : in String) return Boolean is
>       Target    : Character renames a(a'first);
>       Substring : constant String:= b(b'first+1..b'last);
>     begin
>       return (for some Ch of Substring => Ch = Target);
>     end tt;
>

Yes, but in the original posted code the return-value was false if 
found, true if not.