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From: tmoran@bix.com (Tom Moran)
Subject: Re: array question
Date: 1999/01/19
Message-ID: <36a4316c.39477464@news.pacbell.net>#1/1
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References: <78189o$2bj@eng-ser1.erg.cuhk.edu.hk>
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 18 Jan 1999 23:22:54 PDT)
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Newsgroups: comp.lang.ada
Date: 1999-01-19T00:00:00+00:00
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>	i want to ask a question in array.
>type MY_ARRAY is array(INTEGER range <>) of FLOAT;

>what is the meaning of <>, 
  It's indefinite - array of this type can have various lengths, eg
short : my_array(1 .. 10);
long : my_array(1 .. 10000);
   If you said instead
type my_other_array is array(integer range 1 .. 50) of float;
  then you could say
x : my_other_array;
y: my_other_array;
  but you couldn't say
z : my_other_array(1 .. 10);
  since my_other_array type was defined with fixed bounds of 1 .. 50

>also can i replace INTEGER with
>other type? such as FLOAT, BOOLEAN?
  Boolean yes, Float no.  (How would you go about setting the initial
values of an array(float range 0.1 .. 0.2)?  x(0.100000001) := 1;
x(0.100000002) := 2; etc?)