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#ifndef GENERS_ARRAYADAPTOR_HH_
#define GENERS_ARRAYADAPTOR_HH_
#include "Alignment/Geners/interface/IOException.hh"
#include <cassert>
#include <cstddef>
#include "Alignment/Geners/interface/IOIsContiguous.hh"
#include "Alignment/Geners/interface/InsertContainerItem.hh"
#include "Alignment/Geners/interface/ProcessItem.hh"
#include "Alignment/Geners/interface/binaryIO.hh"
namespace gs {
template <class Stream, class State, class Item, class Stage>
struct GenericWriter;
template <class Stream, class State, class Item, class Stage>
struct GenericReader;
template <typename T>
class ArrayAdaptor {
public:
typedef T value_type;
typedef const T *const_iterator;
inline ArrayAdaptor(const T *indata, const std::size_t sz, const bool writeItemClassId = true)
: data_(indata), size_(sz), writetemCl_(writeItemClassId) {
if (sz)
assert(data_);
}
inline std::size_t size() const { return size_; }
inline const_iterator begin() const { return data_; }
inline const_iterator end() const { return data_ + size_; }
inline bool writeItemClassId() const { return writetemCl_; }
inline const T &operator[](const std::size_t index) const { return data_[index]; }
inline T &operator[](const std::size_t index) { return (const_cast<T *>(data_))[index]; }
inline T &at(const std::size_t index) {
if (index >= size_)
throw gs::IOOutOfRange("gs::ArrayAdaptor::at: index out of range");
return (const_cast<T *>(data_))[index];
}
ArrayAdaptor() = delete;
private:
const T *data_;
std::size_t size_;
bool writetemCl_;
};
template <class T>
struct IOIsContiguous<ArrayAdaptor<T>> {
enum { value = 1 };
};
template <class T>
struct IOIsContiguous<const ArrayAdaptor<T>> {
enum { value = 1 };
};
template <class T>
struct IOIsContiguous<volatile ArrayAdaptor<T>> {
enum { value = 1 };
};
template <class T>
struct IOIsContiguous<const volatile ArrayAdaptor<T>> {
enum { value = 1 };
};
template <class T>
struct InsertContainerItem<ArrayAdaptor<T>> {
typedef ArrayAdaptor<T> A;
static inline void insert(A &obj, const typename A::value_type &item, const std::size_t itemNumber) {
obj.at(itemNumber) = item;
}
};
template <class T>
struct InsertContainerItem<volatile ArrayAdaptor<T>> {
typedef ArrayAdaptor<T> A;
static inline void insert(A &obj, const typename A::value_type &item, const std::size_t itemNumber) {
obj.at(itemNumber) = item;
}
};
// Ignore array size I/O. The size is provided in the constructor.
// Of course, it still has to be written somewhere, but that code
// is external w.r.t. the array adaptor.
template <class Stream, class State, class T>
struct GenericWriter<Stream, State, ArrayAdaptor<T>, InContainerSize> {
inline static bool process(std::size_t, Stream &os, State *, const bool processClassId) { return true; }
};
template <class Stream, class State, class T>
struct GenericReader<Stream, State, ArrayAdaptor<T>, InContainerSize> {
inline static bool process(std::size_t, Stream &os, State *, const bool processClassId) { return true; }
};
template <class Stream, class State, class T>
struct GenericWriter<Stream, State, ArrayAdaptor<T>, InPODArray> {
inline static bool process(const ArrayAdaptor<T> &a, Stream &os, State *, bool) {
const std::size_t len = a.size();
if (len)
write_pod_array(os, &a[0], len);
return !os.fail();
}
};
template <class Stream, class State, class T>
struct GenericReader<Stream, State, ArrayAdaptor<T>, InPODArray> {
inline static bool process(ArrayAdaptor<T> &a, Stream &s, State *, bool) {
const std::size_t len = a.size();
if (len)
read_pod_array(s, &a[0], len);
return !s.fail();
}
};
template <class Stream, class State, class T>
struct GenericWriter<Stream, State, ArrayAdaptor<T>, InContainerHeader> {
typedef ArrayAdaptor<T> Container;
inline static bool process(const Container &c, Stream &os, State *, const bool processClassId) {
bool status = processClassId ? ClassId::makeId<Container>().write(os) : true;
if (status && !(IOTraits<T>::IsPOD && IOTraits<Container>::IsContiguous) && c.writeItemClassId())
status = ClassId::makeId<T>().write(os);
return status;
}
};
template <class Stream, class State, class T>
struct GenericReader<Stream, State, ArrayAdaptor<T>, InContainerHeader> {
typedef ArrayAdaptor<T> Container;
inline static bool process(Container &a, Stream &is, State *state, const bool processClassId) {
bool status = true;
if (processClassId) {
ClassId id(is, 1);
const ClassId ¤t = ClassId::makeId<Container>();
status = (id.name() == current.name());
}
if (status) {
if (!(IOTraits<T>::IsPOD && IOTraits<Container>::IsContiguous))
if (a.writeItemClassId()) {
ClassId id(is, 1);
state->push_back(id);
}
}
return status;
}
};
template <class Stream, class State, class T>
struct GenericReader<Stream, State, ArrayAdaptor<T>, InContainerFooter> {
typedef ArrayAdaptor<T> Container;
inline static bool process(Container &a, Stream &, State *state, bool) {
if (!(IOTraits<T>::IsPOD && IOTraits<Container>::IsContiguous))
if (a.writeItemClassId())
state->pop_back();
return true;
}
};
} // namespace gs
gs_specialize_template_id_T(gs::ArrayAdaptor, 0, 1)
#endif // GENERS_ARRAYADAPTOR_HH_
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