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// ==========================================================================
// SeqAn - The Library for Sequence Analysis
// ==========================================================================
// Copyright (c) 2006-2018, Knut Reinert, FU Berlin
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of Knut Reinert or the FU Berlin nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL KNUT REINERT OR THE FU BERLIN BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
// DAMAGE.
//
// ==========================================================================
// Author: David Weese <david.weese@fu-berlin.de>
// Author: Enrico Siragusa <enrico.siragusa@fu-berlin.de>
// ==========================================================================
#ifndef SEQAN_BASIC_FUNCTORS_H_
#define SEQAN_BASIC_FUNCTORS_H_
namespace seqan {
// ============================================================================
// Functors
// ============================================================================
// ----------------------------------------------------------------------------
// Functor OrFunctor
// ----------------------------------------------------------------------------
template <typename TFunctor1, typename TFunctor2>
struct OrFunctor
{
TFunctor1 func1;
TFunctor2 func2;
OrFunctor()
{}
OrFunctor(TFunctor1 const &func1, TFunctor2 const &func2):
func1(func1), func2(func2)
{}
template <typename TValue>
bool operator() (TValue const & val)
{
return func1(val) || func2(val);
}
template <typename TValue>
bool operator() (TValue const & val) const
{
return func1(val) || func2(val);
}
};
// ----------------------------------------------------------------------------
// Functor AndFunctor
// ----------------------------------------------------------------------------
template <typename TFunctor1, typename TFunctor2>
struct AndFunctor
{
TFunctor1 func1;
TFunctor2 func2;
AndFunctor()
{}
AndFunctor(TFunctor1 const &func1, TFunctor2 const &func2):
func1(func1), func2(func2)
{}
template <typename TValue>
bool operator() (TValue const & val)
{
return func1(val) && func2(val);
}
template <typename TValue>
bool operator() (TValue const & val) const
{
return func1(val) && func2(val);
}
};
// ----------------------------------------------------------------------------
// Functor NotFunctor
// ----------------------------------------------------------------------------
template <typename TFunctor>
struct NotFunctor
{
TFunctor func;
NotFunctor()
{}
NotFunctor(TFunctor const &func):
func(func)
{}
template <typename TValue>
bool operator() (TValue const & val)
{
return !func(val);
}
template <typename TValue>
bool operator() (TValue const & val) const
{
return !func(val);
}
};
// ----------------------------------------------------------------------------
// Functor CountDownFunctor
// ----------------------------------------------------------------------------
template <typename TFunctor = True, uint64_t REMAINING = 0>
struct CountDownFunctor
{
uint64_t remaining;
TFunctor func;
CountDownFunctor(uint64_t remaining = REMAINING):
remaining(remaining)
{}
CountDownFunctor(uint64_t remaining, TFunctor const &func):
remaining(remaining),
func(func)
{}
template <typename TValue>
bool operator() (TValue const & val)
{
if (remaining == 0)
return true;
if (func(val))
--remaining;
return false;
}
operator bool()
{
return remaining == 0;
}
};
// ----------------------------------------------------------------------------
// Functor CountFunctor
// ----------------------------------------------------------------------------
template <typename TFunctor = True>
struct CountFunctor
{
uint64_t count;
TFunctor func;
CountFunctor() : count(0)
{}
CountFunctor(TFunctor const & func) : count(0), func(func)
{}
template <typename TValue>
bool operator() (TValue const & val)
{
if (func(val))
++count;
return false;
}
operator uint64_t() const
{
return count;
}
};
template <typename TFunctor>
inline void clear(CountFunctor<TFunctor> &func)
{
func.count = 0;
}
template <typename TFunctor>
inline uint64_t & value(CountFunctor<TFunctor> &func)
{
return func.count;
}
} // namespace seqan
#endif // SEQAN_BASIC_FUNCTORS_H_
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