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//======================================================================================================================
//
// This file is part of waLBerla. waLBerla is free software: you can
// redistribute it and/or modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// waLBerla 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 General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with waLBerla (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>.
//
//! \file Array.h
//! \ingroup core
//! \author Florian Schornbaum <florian.schornbaum@fau.de>
//
//======================================================================================================================
#pragma once
#include "DataTypes.h"
#include "core/debug/Debug.h"
#include <iostream>
#include <sstream>
#include <vector>
namespace walberla {
/// Fixed size, dynamically allocated array
template< typename T >
class Array {
public:
inline Array() : array_( NULL ), size_( uint_c(0) ) {}
inline Array( const uint_t n, const T& t = T() );
inline Array( const std::vector<T>& vector );
inline Array( const Array& array );
~Array() { if( array_ != NULL ) delete[] array_; }
uint_t size() const { return size_; }
bool empty() const { return size_ == 0; }
inline bool operator==( const Array& array ) const;
inline bool operator!=( const Array& array ) const { return !operator==( array );}
const T& operator[]( const uint_t index ) const { WALBERLA_ASSERT_LESS( index, size_ ); return array_[ index ]; }
T& operator[]( const uint_t index ) { WALBERLA_ASSERT_LESS( index, size_ ); return array_[ index ]; }
inline const T* begin() const { return array_; }
inline T* begin() { return array_; }
inline const T* end() const { return array_ + size_; }
inline T* end() { return array_ + size_; }
inline void swap( Array& array );
void toStream( std::ostream& os ) const;
inline std::string toString() const;
protected:
T* array_;
uint_t size_;
}; // class Array
template< typename T >
inline Array<T>::Array( const uint_t n, const T& t ) : array_( n == 0 ? NULL : new T[n] ), size_( n )
{
for( uint_t i = 0; i != n; ++i )
array_[i] = t;
}
template< typename T >
inline Array<T>::Array( const std::vector<T>& vector ) :
array_( vector.size() == 0 ? NULL : new T[ vector.size() ] ), size_( vector.size() )
{
for( uint_t i = 0; i != size_; ++i )
array_[i] = vector[i];
}
template< typename T >
inline Array<T>::Array( const Array& array ) :
array_( array.size_ == 0 ? NULL : new T[ array.size_ ] ), size_( array.size_ )
{
for( uint_t i = 0; i != size_; ++i )
array_[i] = array.array_[i];
}
template< typename T >
inline bool Array<T>::operator==( const Array& array ) const
{
if( size_ != array.size_ )
return false;
for( uint_t i = 0; i != size_; ++i )
if( array_[i] != array.array_[i] ) return false;
return true;
}
template< typename T >
inline void Array<T>::swap( Array& array )
{
T* ptr = array_;
array_ = array.array_;
array.array_ = ptr;
uint_t s = size_;
size_ = array.size_;
array.size_ = s;
}
template< typename T >
void Array<T>::toStream( std::ostream& os ) const {
os << "{ ";
for( auto it = begin(); it != end(); ++it ) {
auto next = it;
os << (*it) << ( ( ++next == end() ) ? " " : ", " );
}
os << "}";
}
template< typename T >
inline std::string Array<T>::toString() const {
std::ostringstream oss;
toStream( oss );
return oss.str();
}
//////////////////////
// Global Functions //
//////////////////////
template< typename T >
inline std::ostream& operator<<( std::ostream& os, const Array<T>& array ) {
array.toStream( os );
return os;
}
} // namespace walberla