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From: Jacob Sparre Andersen <jacob@jacob-sparre.dk>
Newsgroups: comp.lang.ada
Subject: Re: confusing string error
Date: Fri, 14 Feb 2014 14:03:24 +0100
Organization: Jacob Sparre Andersen Research & Innovation
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agent@drrob1.com writes:

> Code fragment:
>
> type FSATyp is (delim, op, dgt, allelse);
> type TokenType is record
>   Ustr : unbounded_string;
>   State : FSATyp;
>   delimCH : Character;
>   delimstate : FSATyp;
> end record;
>
> ch: character;
>
> begin
>  ...
>
> Token.uStr := null_unbounded_string;
>
> ch now contains a plus sign, or an asterisk
> Token.uStr := Token.uStr & ch
>
> this last line fails with error Ada.Strings.INDEX_ERROR

You haven't provided enough information to compile and evaluate your
example.

Greetings,

Jacob
-- 
»You know the world has gone crazy when the best rapper is a
 white guy, the best golfer is a black guy, the swiss hold
 the America's cup, France is accusing the U.S. of
 arrogance, and Germany doesn't want to go to war«