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/*
Copyright(C) 2011-2016 Brazil
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "dat.hpp"
namespace grn {
namespace dat {
// This class is used to detect an out-of-range access in debug mode.
template <typename T>
class GRN_DAT_API Array {
public:
Array() : ptr_(NULL), size_(0) {}
Array(void *ptr, UInt32 size) : ptr_(static_cast<T *>(ptr)), size_(size) {
GRN_DAT_DEBUG_THROW_IF((ptr == NULL) && (size != 0));
}
template <UInt32 U>
explicit Array(T (&array)[U]) : ptr_(array), size_(U) {}
~Array() {}
const T &operator[](UInt32 i) const {
GRN_DAT_DEBUG_THROW_IF(i >= size_);
return ptr_[i];
}
T &operator[](UInt32 i) {
GRN_DAT_DEBUG_THROW_IF(i >= size_);
return ptr_[i];
}
const T *begin() const {
return ptr();
}
T *begin() {
return ptr();
}
const T *end() const {
return ptr() + size();
}
T *end() {
return ptr() + size();
}
void assign(void *ptr, UInt32 size) {
GRN_DAT_DEBUG_THROW_IF((ptr == NULL) && (size != 0));
ptr_ = static_cast<T *>(ptr);
size_ = size;
}
template <UInt32 U>
void assign(T (&array)[U]) {
assign(array, U);
}
void swap(Array *rhs) {
T * const temp_ptr = ptr_;
ptr_ = rhs->ptr_;
rhs->ptr_ = temp_ptr;
const UInt32 temp_size = size_;
size_ = rhs->size_;
rhs->size_ = temp_size;
}
T *ptr() const {
return ptr_;
}
UInt32 size() const {
return size_;
}
private:
T *ptr_;
UInt32 size_;
// Disallows copy and assignment.
Array(const Array &);
Array &operator=(const Array &);
};
} // namespace dat
} // namespace grn
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