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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%%
+%%-----------------------------------------------------------------
+%% File: tracer.erl
+%%
+%% Description:
+%% This file contains an example of pre and post conditions for
+%% the corba backend.
+%%
+%%-----------------------------------------------------------------
+-module(tracer).
+-include("m.hrl").
+
+%%-----------------------------------------------------------------
+%% External exports
+%%-----------------------------------------------------------------
+-export([pre/3, post/4]).
+
+%%-----------------------------------------------------------------
+%% Internal exports
+%%-----------------------------------------------------------------
+-export([]).
+
+%%-----------------------------------------------------------------
+%% External functions
+%%-----------------------------------------------------------------
+pre(M, F, [State, I]) when is_integer(I) ->
+ io:format("Precond called in process ~p: ~s:~s() ~p\n", [self(), M, F, [State, I]]),
+ ok;
+pre(_M, _F, _A) -> %% Just an silly example to get an exception case
+ corba:raise(#'m_NotAnInteger'{}).
+
+post(M, F, A, R) ->
+ io:format("Postcond called in process ~p: ~s:~s() ~p ~p\n", [self(), M, F, A, R]),
+ ok.
+
+%%-----------------------------------------------------------------
+%% Internal functions
+%%-----------------------------------------------------------------