From: bond@ee.ubc.ca (Greg Bond)
Subject: Subprogram access types and generic packages
Date: 1997/03/18
Date: 1997-03-18T00:00:00+00:00 [thread overview]
Message-ID: <bond-ya023680001803971613240001@nntp.ucs.ubc.ca> (raw)
I'm trying to write a generic package that will register an access type
of one of its internal subprograms with an external subprogram when
instantiated. I get the error message:
pkg.adb:12:14: access type must not be outside generic body
Why not?
Here's a simple bit of code that generates this error: (gnatmake
access_test)
--------------------------------------------------
access_test.adb
--------------------------------------------------
with Pkg;
procedure Access_Test is
Val: constant Integer := 10;
package Test is new Pkg (Val);
use Test;
begin
null;
end Access_Test;
--------------------------------------------------
pkg.ads
--------------------------------------------------
generic
Const: Integer;
package Pkg is
pragma Elaborate_Body (Pkg);
end Pkg;
--------------------------------------------------
pkg.adb
--------------------------------------------------
with Reg; use Reg;
package body Pkg is
procedure Proc is
begin
null;
end Proc;
begin
Register (Proc'Access);
end Pkg;
--------------------------------------------------
reg.ads
--------------------------------------------------
package Reg is
type Proc_Alias is access procedure;
procedure Register (Proc: Proc_Alias);
end Reg;
--------------------------------------------------
reg.adb
--------------------------------------------------
package body Reg is
procedure Register (Proc: in Proc_Alias) is
begin
null;
end Register;
end Reg;
--
* Greg Bond * Dept. of Electrical and Computer Eng.
* email: bond@ee.ubc.ca * Univ. of British Columbia
* voice: (604) 822 0899 * 2356 Main Mall
* fax: (604) 822 5949 * Vancouver, BC
* web: http://www.ee.ubc.ca/~bond * Canada, V6T 1Z4
next reply other threads:[~1997-03-18 0:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-03-18 0:00 Greg Bond [this message]
1997-03-19 0:00 ` Subprogram access types and generic packages Robert A Duff
1997-03-20 0:00 ` Tucker Taft
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