rel-test.hpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
* Vincent Barichard <Vincent.Barichard@univ-angers.fr>
*
* Copyright:
* Christian Schulte, 2003
* Vincent Barichard, 2012
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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*/
namespace Gecode { namespace Float {
template<class View>
forceinline RelTest
rtest_eq(View x, View y) {
if ((x.min() > y.max()) || (x.max() < y.min())) return RT_FALSE;
return (x.assigned() && y.assigned()) ? RT_TRUE : RT_MAYBE;
}
template<class View>
forceinline RelTest
rtest_eq(View x, FloatVal n) {
if ((x.min() > n.max()) || (x.max() < n.min())) return RT_FALSE;
return x.assigned() ? RT_TRUE : RT_MAYBE;
}
template<class View>
forceinline RelTest
rtest_lq(View x, View y) {
if (x.max() <= y.min()) return RT_TRUE;
if (x.min() > y.max()) return RT_FALSE;
return RT_MAYBE;
}
template<class View>
forceinline RelTest
rtest_lq(View x, FloatVal n) {
if (x.max() <= n.min()) return RT_TRUE;
if (x.min() > n.max()) return RT_FALSE;
return RT_MAYBE;
}
template<class View>
forceinline RelTest
rtest_le(View x, View y) {
if (x.max() < y.min()) return RT_TRUE;
if (x.min() >= y.max()) return RT_FALSE;
return RT_MAYBE;
}
template<class View>
forceinline RelTest
rtest_le(View x, FloatVal n) {
if (x.max() < n.min()) return RT_TRUE;
if (x.min() >= n.max()) return RT_FALSE;
return RT_MAYBE;
}
}}
// STATISTICS: float-var
Gecode::FloatVal
Float value type.
Definition float.hh:334
Gecode::FloatVal::max
friend FloatVal max(const FloatVal &x, const FloatVal &y)
Definition val.hpp:386
Gecode::FloatVal::min
friend FloatVal min(const FloatVal &x, const FloatVal &y)
Definition val.hpp:398
Gecode::View
Gecode::Float
Floating point numbers.
Gecode::Float::RelTest
RelTest
Result of testing relation.
Definition view.hpp:533
Gecode::Float::RT_TRUE
@ RT_TRUE
Relation does hold.
Definition view.hpp:536
Gecode::Float::RT_FALSE
@ RT_FALSE
Relation does not hold.
Definition view.hpp:534
Gecode::Float::RT_MAYBE
@ RT_MAYBE
Relation may hold or not.
Definition view.hpp:535
Gecode::Float::rtest_le
RelTest rtest_le(View x, View y)
Test whether view x is less than view y.
Definition rel-test.hpp:70
Gecode::Float::rtest_eq
RelTest rtest_eq(View x, View y)
Test whether views x and y are equal.
Definition rel-test.hpp:40
Gecode::Float::rtest_lq
RelTest rtest_lq(View x, View y)
Test whether view x is less or equal than view y.
Definition rel-test.hpp:54
Gecode::Int::RelTest
RelTest
Result of testing relation.
Definition view.hpp:1734
Gecode
Gecode toplevel namespace
forceinline
#define forceinline
Definition config.hpp:187