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/*
* Copyright 2008-2012 NVIDIA Corporation
*
* 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.
*/
/*! \file logical.h
* \brief Logical operations on ranges
*/
#pragma once
#include <thrust/detail/config.h>
#include <thrust/detail/dispatchable.h>
namespace thrust
{
template <typename System, typename InputIterator, typename Predicate>
bool all_of(thrust::detail::dispatchable_base<System> &system, InputIterator first, InputIterator last, Predicate pred);
template <typename System, typename InputIterator, typename Predicate>
bool any_of(thrust::detail::dispatchable_base<System> &system, InputIterator first, InputIterator last, Predicate pred);
template <typename System, typename InputIterator, typename Predicate>
bool none_of(thrust::detail::dispatchable_base<System> &system, InputIterator first, InputIterator last, Predicate pred);
/*! \addtogroup reductions
* \{
* \addtogroup logical
* \ingroup reductions
* \{
*/
/*! \p all_of determines whether all elements in a range satify a predicate.
* Specifically, \p all_of returns \c true if <tt>pred(*i)</tt> is \c true
* for every iterator \c i in the range <tt>[first, last)</tt> and
* \c false otherwise.
*
* \param first The beginning of the sequence.
* \param last The end of the sequence.
* \param pred A predicate used to test range elements.
* \return \c true, if all elements satisfy the predicate; \c false, otherwise.
*
* \tparam InputIterator is a model of <a href="http://www.sgi.com/tech/stl/InputIterator.html">Input Iterator</a>,
* \tparam Predicate must be a model of <a href="http://www.sgi.com/tech/stl/Predicate.html">Predicate</a>.
*
* \code
* #include <thrust/logical.h>
* #include <thrust/functional.h>
* ...
* bool A[3] = {true, true, false};
*
* thrust::all_of(A, A + 2, thrust::identity<bool>()); // returns true
* thrust::all_of(A, A + 3, thrust::identity<bool>()); // returns false
*
* // empty range
* thrust::all_of(A, A, thrust::identity<bool>()); // returns false
*
* \endcode
*
* \see any_of
* \see none_of
* \see transform_reduce
*/
template <typename InputIterator, typename Predicate>
bool all_of(InputIterator first, InputIterator last, Predicate pred);
/*! \p any_of determines whether any element in a range satifies a predicate.
* Specifically, \p any_of returns \c true if <tt>pred(*i)</tt> is \c true
* for any iterator \c i in the range <tt>[first, last)</tt> and
* \c false otherwise.
*
* \param first The beginning of the sequence.
* \param last The end of the sequence.
* \param pred A predicate used to test range elements.
* \return \c true, if any element satisfies the predicate; \c false, otherwise.
*
* \tparam InputIterator is a model of <a href="http://www.sgi.com/tech/stl/InputIterator.html">Input Iterator</a>,
* \tparam Predicate must be a model of <a href="http://www.sgi.com/tech/stl/Predicate.html">Predicate</a>.
*
* \code
* #include <thrust/logical.h>
* #include <thrust/functional.h>
* ...
* bool A[3] = {true, true, false};
*
* thrust::any_of(A, A + 2, thrust::identity<bool>()); // returns true
* thrust::any_of(A, A + 3, thrust::identity<bool>()); // returns true
*
* thrust::any_of(A + 2, A + 3, thrust::identity<bool>()); // returns false
*
* // empty range
* thrust::any_of(A, A, thrust::identity<bool>()); // returns false
* \endcode
*
* \see all_of
* \see none_of
* \see transform_reduce
*/
template <typename InputIterator, typename Predicate>
bool any_of(InputIterator first, InputIterator last, Predicate pred);
/*! \p none_of determines whether no element in a range satifies a predicate.
* Specifically, \p none_of returns \c true if there is no iterator \c i in
* the range <tt>[first, last)</tt> such that <tt>pred(*i)</tt> is \c true,
* and \c false otherwise.
*
* \param first The beginning of the sequence.
* \param last The end of the sequence.
* \param pred A predicate used to test range elements.
* \return \c true, if no element satisfies the predicate; \c false, otherwise.
*
* \tparam InputIterator is a model of <a href="http://www.sgi.com/tech/stl/InputIterator.html">Input Iterator</a>,
* \tparam Predicate must be a model of <a href="http://www.sgi.com/tech/stl/Predicate.html">Predicate</a>.
*
* \code
* #include <thrust/logical.h>
* #include <thrust/functional.h>
* ...
* bool A[3] = {true, true, false};
*
* thrust::none_of(A, A + 2, thrust::identity<bool>()); // returns false
* thrust::none_of(A, A + 3, thrust::identity<bool>()); // returns false
*
* thrust::none_of(A + 2, A + 3, thrust::identity<bool>()); // returns true
*
* // empty range
* thrust::none_of(A, A, thrust::identity<bool>()); // returns true
* \endcode
*
* \see all_of
* \see any_of
* \see transform_reduce
*/
template <typename InputIterator, typename Predicate>
bool none_of(InputIterator first, InputIterator last, Predicate pred);
/*! \} // end logical
* \} // end reductions
*/
} // end namespace thrust
#include <thrust/detail/logical.inl>
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