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This file is part of Logtalk <https://logtalk.org/>  
Copyright 1998-2020 Paulo Moura <pmoura@logtalk.org>

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
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% start by loading the example:

| ?- logtalk_load(diamonds(loader)).
...


% first variant of the "diamond problem", defined in the "diamond1" source file:

| ?- d1::m.

Redefinition of method m/0 in object b1
yes


% second variant of the "diamond problem", defined in the "diamond2" source file:

| ?- d2::m.

Redefinition of method m/0 in object c2
yes


% third variant of the "diamond problem", defined in the "diamond3" source file:

| ?- d3::b3_m.

Redefinition of method m/0 in object b3
yes

| ?- d3::c3_m.

Redefinition of method m/0 in object c3
yes

| ?- d3::m.

Redefinition of method m/0 in object b3
yes
