mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-11-12 21:09:01 +00:00
200 lines
6.7 KiB
C++
200 lines
6.7 KiB
C++
|
/*=============================================================================
|
||
|
|
Copyright (c) 2011-2015 Bolero MURAKAMI
|
||
|
|
https://github.com/bolero-MURAKAMI/Sprout
|
||
|
|
|
||
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
||
|
|
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||
|
|
=============================================================================*/
|
||
|
|
#ifndef SPROUT_VALARRAY_INDIRECT_ARRAY_HPP
|
||
|
|
#define SPROUT_VALARRAY_INDIRECT_ARRAY_HPP
|
||
|
|
|
||
|
|
#include <sprout/config.hpp>
|
||
|
|
#include <sprout/workaround/std/cstddef.hpp>
|
||
|
|
#include <sprout/utility/swap.hpp>
|
||
|
|
#include <sprout/iterator/index_iterator.hpp>
|
||
|
|
#include <sprout/algorithm/cxx14/copy.hpp>
|
||
|
|
#include <sprout/algorithm/cxx14/fill.hpp>
|
||
|
|
#include <sprout/valarray/valarray_fwd.hpp>
|
||
|
|
|
||
|
|
namespace sprout {
|
||
|
|
//
|
||
|
|
// indirect_array
|
||
|
|
//
|
||
|
|
template<typename T, std::size_t N, std::size_t M>
|
||
|
|
class indirect_array {
|
||
|
|
friend class sprout::valarray<T, N>;
|
||
|
|
private:
|
||
|
|
typedef sprout::valarray<T, N> valarray_type;
|
||
|
|
public:
|
||
|
|
typedef typename valarray_type::value_type value_type;
|
||
|
|
typedef typename valarray_type::reference reference;
|
||
|
|
typedef typename valarray_type::size_type size_type;
|
||
|
|
typedef typename valarray_type::difference_type difference_type;
|
||
|
|
typedef typename valarray_type::pointer pointer;
|
||
|
|
typedef sprout::index_iterator<indirect_array const&> iterator;
|
||
|
|
private:
|
||
|
|
typedef sprout::valarray<size_type, M> indexes_type;
|
||
|
|
public:
|
||
|
|
SPROUT_STATIC_CONSTEXPR size_type static_size = valarray_type::static_size;
|
||
|
|
private:
|
||
|
|
sprout::value_holder<valarray_type&> arr_;
|
||
|
|
indexes_type indexes_;
|
||
|
|
private:
|
||
|
|
indirect_array() = delete;
|
||
|
|
SPROUT_CONSTEXPR indirect_array(sprout::valarray<T, N>& arr, indexes_type const& indexes)
|
||
|
|
: arr_(arr)
|
||
|
|
, indexes_(indexes)
|
||
|
|
{}
|
||
|
|
public:
|
||
|
|
SPROUT_CONSTEXPR indirect_array(indirect_array const& other)
|
||
|
|
: arr_(other.arr_), indexes_(other.indexes_)
|
||
|
|
{}
|
||
|
|
template<std::size_t N2, std::size_t M2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR indirect_array const&
|
||
|
|
operator=(indirect_array<T, N2, M2> const& ar) const {
|
||
|
|
sprout::copy(ar.begin(), ar.end(), begin());
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator=(sprout::valarray<T, N2> const& ar) const {
|
||
|
|
sprout::copy(ar.begin(), ar.end(), begin());
|
||
|
|
}
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator=(T const& value) const {
|
||
|
|
sprout::fill(begin(), end(), value);
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator+=(sprout::valarray<T, N2> const& xs) const {
|
||
|
|
iterator it2 = begin();
|
||
|
|
for (typename sprout::valarray<T, N2>::const_iterator it = xs.begin(), last = xs.end(); it != last; ++it, ++it2) {
|
||
|
|
*it2 += *it;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator-=(sprout::valarray<T, N2> const& xs) const {
|
||
|
|
iterator it2 = begin();
|
||
|
|
for (typename sprout::valarray<T, N2>::const_iterator it = xs.begin(), last = xs.end(); it != last; ++it, ++it2) {
|
||
|
|
*it2 -= *it;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator*=(sprout::valarray<T, N2> const& xs) const {
|
||
|
|
iterator it2 = begin();
|
||
|
|
for (typename sprout::valarray<T, N2>::const_iterator it = xs.begin(), last = xs.end(); it != last; ++it, ++it2) {
|
||
|
|
*it2 *= *it;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator/=(sprout::valarray<T, N2> const& xs) const {
|
||
|
|
iterator it2 = begin();
|
||
|
|
for (typename sprout::valarray<T, N2>::const_iterator it = xs.begin(), last = xs.end(); it != last; ++it, ++it2) {
|
||
|
|
*it2 /= *it;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator%=(sprout::valarray<T, N2> const& xs) const {
|
||
|
|
iterator it2 = begin();
|
||
|
|
for (typename sprout::valarray<T, N2>::const_iterator it = xs.begin(), last = xs.end(); it != last; ++it, ++it2) {
|
||
|
|
*it2 %= *it;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator&=(sprout::valarray<T, N2> const& xs) const {
|
||
|
|
iterator it2 = begin();
|
||
|
|
for (typename sprout::valarray<T, N2>::const_iterator it = xs.begin(), last = xs.end(); it != last; ++it, ++it2) {
|
||
|
|
*it2 &= *it;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator|=(sprout::valarray<T, N2> const& xs) const {
|
||
|
|
iterator it2 = begin();
|
||
|
|
for (typename sprout::valarray<T, N2>::const_iterator it = xs.begin(), last = xs.end(); it != last; ++it, ++it2) {
|
||
|
|
*it2 |= *it;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator^=(sprout::valarray<T, N2> const& xs) const {
|
||
|
|
iterator it2 = begin();
|
||
|
|
for (typename sprout::valarray<T, N2>::const_iterator it = xs.begin(), last = xs.end(); it != last; ++it, ++it2) {
|
||
|
|
*it2 ^= *it;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator<<=(sprout::valarray<T, N2> const& xs) const {
|
||
|
|
iterator it2 = begin();
|
||
|
|
for (typename sprout::valarray<T, N2>::const_iterator it = xs.begin(), last = xs.end(); it != last; ++it, ++it2) {
|
||
|
|
*it2 <<= *it;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
template<std::size_t N2>
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
operator>>=(sprout::valarray<T, N2> const& xs) const {
|
||
|
|
iterator it2 = begin();
|
||
|
|
for (typename sprout::valarray<T, N2>::const_iterator it = xs.begin(), last = xs.end(); it != last; ++it, ++it2) {
|
||
|
|
*it2 >>= *it;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
SPROUT_CXX14_CONSTEXPR void
|
||
|
|
swap(indirect_array& other) SPROUT_NOEXCEPT {
|
||
|
|
sprout::swap(arr_, other.arr_);
|
||
|
|
sprout::swap(indexes_, other.indexes_);
|
||
|
|
}
|
||
|
|
|
||
|
|
// iterators:
|
||
|
|
SPROUT_CONSTEXPR iterator
|
||
|
|
begin() const {
|
||
|
|
return iterator(*this, 0);
|
||
|
|
}
|
||
|
|
SPROUT_CONSTEXPR iterator
|
||
|
|
end() const {
|
||
|
|
return iterator(*this, size());
|
||
|
|
}
|
||
|
|
// capacity:
|
||
|
|
SPROUT_CONSTEXPR size_type size() const SPROUT_NOEXCEPT {
|
||
|
|
return indexes_.size();
|
||
|
|
}
|
||
|
|
SPROUT_CONSTEXPR bool empty() const SPROUT_NOEXCEPT {
|
||
|
|
return size() == 0;
|
||
|
|
}
|
||
|
|
// element access:
|
||
|
|
SPROUT_CONSTEXPR reference operator[](size_type i) const {
|
||
|
|
return (*arr_)[indexes_[i]];
|
||
|
|
}
|
||
|
|
SPROUT_CONSTEXPR reference at(size_type i) const {
|
||
|
|
return arr_->at(indexes_.at(i));
|
||
|
|
}
|
||
|
|
SPROUT_CONSTEXPR reference front() const {
|
||
|
|
return (*this)[0];
|
||
|
|
}
|
||
|
|
SPROUT_CONSTEXPR reference back() const {
|
||
|
|
return (*this)[size() - 1];
|
||
|
|
}
|
||
|
|
};
|
||
|
|
template<typename T, std::size_t N, std::size_t M>
|
||
|
|
SPROUT_CONSTEXPR_OR_CONST typename sprout::indirect_array<T, N, M>::size_type sprout::indirect_array<T, N, M>::static_size;
|
||
|
|
|
||
|
|
//
|
||
|
|
// swap
|
||
|
|
//
|
||
|
|
template<typename T, std::size_t N, std::size_t M>
|
||
|
|
inline SPROUT_CXX14_CONSTEXPR void
|
||
|
|
swap(sprout::indirect_array<T, N, M>& lhs, sprout::indirect_array<T, N, M>& rhs)
|
||
|
|
SPROUT_NOEXCEPT_IF_EXPR(lhs.swap(rhs))
|
||
|
|
{
|
||
|
|
lhs.swap(rhs);
|
||
|
|
}
|
||
|
|
} // namespace sprout
|
||
|
|
|
||
|
|
#endif // #ifndef SPROUT_VALARRAY_INDIRECT_ARRAY_HPP
|