From: Harald Schmidt <office@anobject.net>
Subject: How to define an array of a variant record type?
Date: Mon, 17 Nov 2003 17:57:00 +0100
Date: 2003-11-17T17:57:00+01:00 [thread overview]
Message-ID: <BBDEBC6C.902D%office@anobject.net> (raw)
Hi,
I would like to define an array, which its element type is a variant record
and the Value_Type is only known at runtime.
type Name_Value_Type is (String_Type,
Integer_Type,
Float_Type);
type Name_Value(Value_Type : Name_Value_Type) is
record
The_Name : Unbounded_String;
case Value_Type is
when String_Type =>
String_Value : Unbounded_String;
when Integer_Type =>
Integer_Value : Integer;
when Float_Type =>
The_Value : Float;
end case;
end record;
type Name_Value_Sequence is array(Natural range <>) of Name_Value;
The compiler says "unconstrained element type in array declaration",
...right!
I know Ada is a strong typed language, but sometimes information is only at
runtime available. Does anyone know some workaround, or a regulare design
pattern for this problem?
Harald
next reply other threads:[~2003-11-17 16:57 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-17 16:57 Harald Schmidt [this message]
2003-11-17 17:35 ` How to define an array of a variant record type? Stephen Leake
2003-11-20 10:02 ` Craig Carey
2003-11-17 17:37 ` Marius Amado Alves
2003-11-18 2:48 ` Steve
2003-11-18 9:04 ` Marius Amado Alves
2003-11-17 18:45 ` Rodrigo Garcia
2003-11-18 2:48 ` Steve
2003-11-18 17:48 ` Nick Roberts
2003-11-19 2:38 ` Steve
2003-11-19 8:11 ` Preben Randhol
2003-11-19 13:26 ` Rodrigo Garcia
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