Something went wrong. Try again.
This repository has no description
Something went wrong. Try again.
3.2 kB · 119 lines
C++
at develop
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- *//* * Main authors: * Christian Schulte <schulte@gecode.org> * * Copyright: * Christian Schulte, 2008 * * 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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */
namespace Gecode { namespace Iter { namespace Values {
/** * \brief Value iterator for selecting only positive values * * If \a strict is true, zero is included. * \ingroup FuncIterValues */ template<class I, bool strict=false> class Positive { protected: /// Input iterator I i; public: /// \name Constructors and initialization //@{ /// Default constructor Positive(void); /// Initialize with values from \a i Positive(I& i); /// Initialize with values from \a i void init(I& i); //@}
/// \name Iteration control //@{ /// Test whether iterator is still at a value or done bool operator ()(void) const; /// Move iterator to next value (if possible) void operator ++(void); //@}
/// \name Value access //@{ /// Return current value int val(void) const; //@} };
template<class I, bool strict> forceinline Positive<I,strict>::Positive(void) {}
template<class I, bool strict> forceinline void Positive<I,strict>::init(I& i0) { i=i0; if (strict) { while (i() && (i.val() <= 0)) ++i; } else { while (i() && (i.val() < 0)) ++i; } }
template<class I, bool strict> forceinline Positive<I,strict>::Positive(I& i0) : i(i0) { if (strict) { while (i() && (i.val() <= 0)) ++i; } else { while (i() && (i.val() < 0)) ++i; } }
template<class I, bool strict> forceinline void Positive<I,strict>::operator ++(void) { ++i; } template<class I, bool strict> forceinline bool Positive<I,strict>::operator ()(void) const { return i(); }
template<class I, bool strict> forceinline int Positive<I,strict>::val(void) const { return i.val(); }
}}}
// STATISTICS: iter-any