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// ____ ______ __
// / __ \ / ____// /
// / /_/ // / / /
// / ____// /___ / /___ PixInsight Class Library
// /_/ \____//_____/ PCL 2.4.23
// ----------------------------------------------------------------------------
// pcl/ReferenceArray.h - Released 2022-03-12T18:59:29Z
// ----------------------------------------------------------------------------
// This file is part of the PixInsight Class Library (PCL).
// PCL is a multiplatform C++ framework for development of PixInsight modules.
//
// Copyright (c) 2003-2022 Pleiades Astrophoto S.L. All Rights Reserved.
//
// Redistribution and use in both source and binary forms, with or without
// modification, is permitted provided that the following conditions are met:
//
// 1. All redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. All 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.
//
// 3. Neither the names "PixInsight" and "Pleiades Astrophoto", nor the names
// of their contributors, may be used to endorse or promote products derived
// from this software without specific prior written permission. For written
// permission, please contact info@pixinsight.com.
//
// 4. All products derived from this software, in any form whatsoever, must
// reproduce the following acknowledgment in the end-user documentation
// and/or other materials provided with the product:
//
// "This product is based on software from the PixInsight project, developed
// by Pleiades Astrophoto and its contributors (https://pixinsight.com/)."
//
// Alternatively, if that is where third-party acknowledgments normally
// appear, this acknowledgment must be reproduced in the product itself.
//
// THIS SOFTWARE IS PROVIDED BY PLEIADES ASTROPHOTO AND ITS 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 PLEIADES ASTROPHOTO OR ITS
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, BUSINESS
// INTERRUPTION; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; AND LOSS OF USE,
// DATA OR PROFITS) 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.
// ----------------------------------------------------------------------------
#ifndef __PCL_ReferenceArray_h
#define __PCL_ReferenceArray_h
/// \file pcl/ReferenceArray.h
#include <pcl/Diagnostics.h>
#include <pcl/Allocator.h>
#include <pcl/Container.h>
#include <pcl/IndirectArray.h>
#include <pcl/Iterator.h>
#include <pcl/StandardAllocator.h>
namespace pcl
{
// ----------------------------------------------------------------------------
/*!
* \class ReferenceArray
* \brief Dynamic array of pointers to objects providing direct iteration and
* element access by reference.
*
* %ReferenceArray is a generic, finite ordered sequence of pointers to
* objects, implemented as a reference-counted, dynamic array of pointers to T
* instances. The type A provides dynamic allocation for contiguous sequences
* of void* (StandardAllocator is used by default).
*
* Unlike IndirectArray, %ReferenceArray provides direct access to the objects
* pointed to by its contained pointers, including direct iteration through
* references instead of pointers. This makes %ReferenceArray a perfect
* replacement for Array in cases where storing copies of objects is inviable
* or impractical; for example, when the objects to be stored are unique by
* nature, when the cost of a copy operation is excessive, or as the underlying
* implementation of an heterogeneous container. As a prerequisite for this
* functionality, %ReferenceArray, unlike IndirectArray, cannot contain null
* pointers.
*
* \sa ReferenceSortedArray, IndirectArray, IndirectSortedArray, Array,
* SortedArray, ReferenceCounter
* \ingroup dynamic_arrays
*/
template <typename T, class A = StandardAllocator>
class PCL_CLASS ReferenceArray : public DirectContainer<T>
{
public:
/*! #
*/
typedef IndirectArray<T,A> array_implementation;
/*! #
*/
typedef typename array_implementation::block_allocator
block_allocator;
/*! #
*/
typedef typename array_implementation::allocator
allocator;
/*! #
*/
typedef typename array_implementation::iterator
indirect_iterator;
/*! #
*/
typedef typename array_implementation::const_iterator
const_indirect_iterator;
/*!
* \class pcl::ReferenceArray::iterator
* \brief Mutable %ReferenceArray iterator
*/
class iterator : public Iterator<RandomAccessIterator, T>
{
public:
typedef Iterator<RandomAccessIterator, T> iterator_base;
typedef typename iterator_base::iterator_class
iterator_class;
typedef typename iterator_base::item_type item_type;
/*!
* Default constructor. Constructs an uninitialized iterator object.
*/
iterator() = default;
/*!
* Copy constructor.
*/
iterator( const iterator& ) = default;
/*!
* Constructs a null iterator.
*/
iterator( std::nullptr_t ) : it( nullptr )
{
}
/*!
* Copy assignment operator. Returns a reference to this object.
*/
iterator& operator =( const iterator& ) = default;
/*!
* Pointer-to-object conversion operator. Returns a pointer to the object
* pointed to by this iterator.
*/
operator T*() const
{
return *it;
}
/*!
* Indirection operator. Returns a reference to the object pointed to by
* this iterator.
*/
T& operator *() const
{
return **it;
}
/*!
* Structure selection operator. Returns a pointer to the object pointed
* to by this iterator.
*/
T* operator ->() const
{
return *it;
}
/*!
* Preincrement operator. Increments this iterator so that it points to
* the next object in the iterated container, then returns a reference to
* this iterator.
*/
iterator& operator ++()
{
++it;
return *this;
}
/*!
* Postincrement operator. Increments this iterator so that it points to
* the next object in the iterated container. Returns a copy of the
* iterator as it was before incrementing it.
*/
iterator operator ++( int )
{
indirect_iterator it0 = it;
++it;
return it0;
}
/*!
* Predecrement operator. Decrements this iterator so that it points to
* the previous object in the iterated container, then returns a
* reference to this iterator.
*/
iterator& operator --()
{
--it;
return *this;
}
/*!
* Postdecrement operator. Decrements this iterator so that it points to
* the previous object in the iterated container. Returns a copy of the
* iterator as it was before decrementing it.
*/
iterator operator --( int )
{
indirect_iterator it0 = it;
--it;
return it0;
}
/*!
* Assignment/addition operator. Increments this iterator by a distance
* \a d from its current position. Positive increments cause this
* iterator to move forward by \a d elements. Negative increments move
* this iterator backward by \a d elements. Returns a reference to this
* iterator.
*/
iterator& operator +=( distance_type d )
{
it += d;
return *this;
}
/*!
* Assignment/subtraction operator. Decrements this iterator by a
* distance \a d from its current position. Positive increments cause
* this iterator to move backward by \a d elements. Negative increments
* move this iterator forward by \a d elements. Returns a reference to
* this iterator.
*/
iterator& operator -=( distance_type d )
{
it -= d;
return *this;
}
/*!
* Scalar-to-iterator addition operator. Returns an iterator equivalent
* to this iterator incremented by a distance \a d.
*/
iterator operator +( distance_type d ) const
{
return iterator( it + d );
}
/*!
* Scalar-to-iterator subtraction operator. Returns an iterator equal to
* this iterator decremented by a distance \a d.
*/
iterator operator -( distance_type d ) const
{
return iterator( it - d );
}
/*!
* Iterator subtraction operator. Returns the distance (in container
* elements) between this iterator and another iterator \a i.
*/
distance_type operator -( const iterator& i ) const
{
return it - i.it;
}
/*!
* Equality operator. Returns true if this iterator points to the same
* object as another iterator \a i.
*/
bool operator ==( const iterator& i ) const
{
return it == i.it;
}
/*!
* Less than operator. Returns true if this iterator points to a
* container element that precedes another iterator \a i.
*/
bool operator <( const iterator& i ) const
{
return it < i.it;
}
private:
indirect_iterator it = nullptr;
/*!
* Constructor from an IndirectArray iterator (a pointer to a pointer to
* an object in the iterated container).
*/
explicit
iterator( indirect_iterator i ) : it( i )
{
}
friend class ReferenceArray<T,A>;
friend class ReferenceArray<T,A>::const_iterator;
};
/*!
* \class pcl::ReferenceArray::const_iterator
* \brief Immutable %ReferenceArray iterator
*/
class const_iterator : public Iterator<RandomAccessIterator, T>
{
public:
typedef Iterator<RandomAccessIterator, T> iterator_base;
typedef typename iterator_base::iterator_class
iterator_class;
typedef typename iterator_base::item_type item_type;
/*!
* Default constructor. Constructs an uninitialized iterator object.
*/
const_iterator() = default;
/*!
* Constructor from non-const iterator.
*/
const_iterator( const iterator& i ) : it( i.it )
{
}
/*!
* Constructs a null iterator.
*/
const_iterator( std::nullptr_t ) : it( nullptr )
{
}
/*!
* Copy constructor.
*/
const_iterator( const const_iterator& ) = default;
/*!
* Copy assignment operator. Returns a reference to this immutable
* iterator.
*/
const_iterator& operator =( const const_iterator& ) = default;
/*!
* Mutable iterator assignment operator. Returns a reference to this
* immutable iterator object.
*/
const_iterator& operator =( const iterator& i )
{
it = i.it;
return *this;
}
/*!
* Pointer-to-const-object conversion operator. Returns a pointer to the
* immutable object pointed to by this iterator.
*/
operator const T*() const
{
return *it;
}
/*!
* Indirection operator. Returns a reference to the object pointed to by
* this iterator.
*/
const T& operator *() const
{
return **it;
}
/*!
* Structure selection operator. Returns a pointer to the object pointed
* to by this iterator.
*/
const T* operator ->() const
{
return *it;
}
/*!
* Preincrement operator. Increments this iterator so that it points to
* the next object in the iterated container, then returns a reference to
* this iterator.
*/
const_iterator& operator ++()
{
++it;
return *this;
}
/*!
* Postincrement operator. Increments this iterator so that it points to
* the next object in the iterated container. Returns a copy of the
* iterator as it was before incrementing it.
*/
const_iterator operator ++( int )
{
const_indirect_iterator it0 = it;
++it;
return it0;
}
/*!
* Predecrement operator. Decrements this iterator so that it points to
* the previous object in the iterated container, then returns a
* reference to this iterator.
*/
const_iterator& operator --()
{
--it;
return *this;
}
/*!
* Postdecrement operator. Decrements this iterator so that it points to
* the previous object in the iterated container. Returns a copy of the
* iterator as it was before decrementing it.
*/
const_iterator operator --( int )
{
const_indirect_iterator it0 = it;
--it;
return it0;
}
/*!
* Assignment/addition operator. Increments this iterator by a distance
* \a d from its current position. Positive increments cause this
* iterator to move forward by \a d elements. Negative increments move
* this iterator backward by \a d elements. Returns a reference to this
* iterator.
*/
const_iterator& operator +=( distance_type d )
{
it += d;
return *this;
}
/*!
* Assignment/subtraction operator. Decrements this iterator by a
* distance \a d from its current position. Positive increments cause
* this iterator to move backward by \a d elements. Negative increments
* move this iterator forward by \a d elements. Returns a reference to
* this iterator.
*/
const_iterator& operator -=( distance_type d )
{
it -= d;
return *this;
}
/*!
* Scalar-to-iterator addition operator. Returns an iterator equivalent
* to this iterator incremented by a distance \a d.
*/
const_iterator operator +( distance_type d ) const
{
return const_iterator( it + d );
}
/*!
* Scalar-to-iterator subtraction operator. Returns an iterator equal to
* this iterator decremented by a distance \a d.
*/
const_iterator operator -( distance_type d ) const
{
return const_iterator( it - d );
}
/*!
* Iterator subtraction operator. Returns the distance (in container
* elements) between this iterator and another iterator \a i.
*/
distance_type operator -( const const_iterator& i ) const
{
return it - i.it;
}
/*!
* Iterator subtraction operator. Returns the distance (in container
* elements) between this iterator and a mutable iterator \a i.
*/
distance_type operator -( const iterator& i ) const
{
return it - i.it;
}
/*!
* Equality operator. Returns true if this iterator points to the same
* object as another iterator \a i.
*/
bool operator ==( const const_iterator& i ) const
{
return it == i.it;
}
/*!
* Equality operator. Returns true if this iterator points to the same
* object as a mutable iterator \a i.
*/
bool operator ==( const iterator& i ) const
{
return it == i.it;
}
/*!
* Less than operator. Returns true if this iterator precedes another
* iterator \a i.
*/
bool operator <( const const_iterator& i ) const
{
return it < i.it;
}
/*!
* Less than operator. Returns true if this iterator points to a
* container element that precedes a mutable iterator \a i.
*/
bool operator <( const iterator& i ) const
{
return it < i.it;
}
private:
const_indirect_iterator it = nullptr;
/*!
* Constructor from an IndirectArray iterator (a pointer to a pointer to
* an object in the iterated container).
*/
explicit
const_iterator( const_indirect_iterator i ) : it( i )
{
}
friend class ReferenceArray<T,A>;
};
/*!
* \class pcl::ReferenceArray::reverse_iterator
* \brief Mutable %ReferenceArray reverse iterator.
*/
typedef ReverseRandomAccessIterator<iterator, T>
reverse_iterator;
/*!
* \class pcl::ReferenceArray::const_reverse_iterator
* \brief Immutable %ReferenceArray reverse iterator.
*/
typedef ReverseRandomAccessIterator<const_iterator, const T>
const_reverse_iterator;
// -------------------------------------------------------------------------
/*!
* Constructs an empty reference array.
*/
ReferenceArray() = default;
/*!
* Constructs a reference array that stores \a n copies of a non-null
* pointer \a p.
*
* If \a p is \c nullptr, this function constructs an empty reference array.
*/
ReferenceArray( size_type n, const T* p )
{
PCL_PRECONDITION( p != nullptr )
if ( p != nullptr )
m_array = array_implementation( n, p );
}
/*!
* Constructs a reference array as a copy of the sequence of non-null
* pointers defined by the range [i,j) of forward iterators.
*
* If the range [i,j) contains null pointers, these are ignored and hence
* not included in the constructed reference array.
*/
template <class FI>
ReferenceArray( FI i, FI j )
{
for ( ; i != j; ++i )
if ( *i != nullptr )
m_array.Append( *i );
}
/*!
* Copy constructor.
*/
ReferenceArray( const ReferenceArray& ) = default;
/*!
* Move constructor.
*/
ReferenceArray( ReferenceArray&& ) = default;
/*!
* Destroys a %ReferenceArray object.
*
* Deallocates the internal array of pointers to objects, but does not
* destroy the pointed objects. To destroy them, you have to call Destroy()
* or Delete() explicitly.
*/
~ReferenceArray()
{
}
/*!
* Returns true iff this reference array uniquely references its contained
* array of pointers to objects.
*/
bool IsUnique() const
{
return m_array.IsUnique();
}
/*!
* Returns true iff this reference array is an alias of the array \a x.
*
* Two objects are aliases if both share the same data. Two reference
* containers are aliases if they share a unique set of object pointers.
*/
bool IsAliasOf( const ReferenceArray& x ) const
{
return m_array.IsAliasOf( x.m_array );
}
/*!
* Ensures that this reference array uniquely references its contained
* object pointers.
*
* If necessary, this member function generates a duplicate of the array
* of pointers, references it, and then decrements the reference counter of
* the original pointer array.
*/
void EnsureUnique()
{
m_array.EnsureUnique();
}
/*!
* Returns the total number of bytes required to store the array of object
* pointers contained by this reference array.
*/
size_type Size() const
{
return m_array.Size();
}
/*!
* Returns the length of this reference array.
*/
size_type Length() const
{
return m_array.Length();
}
/*!
* Returns the capacity of this reference array. The capacity is the maximum
* number of pointers to objects that this reference array can contain
* without requiring a reallocation.
*/
size_type Capacity() const
{
return m_array.Capacity();
}
/*!
* Returns the length of the space available in this reference array, or
* zero if this reference array cannot contain more pointers. The available
* space is the number of pointers to objects that can be added to this
* reference array without requiring a reallocation. It is equal to
* Capacity() - Length() by definition.
*/
size_type Available() const
{
return m_array.Available();
}
/*!
* Returns true only if this reference array is valid. A reference array is
* valid if it references an internal structure with an array of pointers,
* even if it is an empty array.
*
* In general, all %ReferenceArray objects are valid with only two
* exceptions:
*
* \li Objects that have been move-copied or move-assigned to other arrays.
* \li Objects that have been invalidated explicitly by calling Transfer().
*
* An invalid array object cannot be used and should be destroyed
* immediately. Invalid arrays are always destroyed automatically during
* move construction and move assignment operations.
*/
bool IsValid() const
{
return m_array.IsValid();
}
/*!
* Returns true iff this reference array is empty.
*/
bool IsEmpty() const
{
return m_array.IsEmpty();
}
/*!
* Returns the minimum legal index in this array (always zero). For empty
* arrays, this function returns a meaningless value.
*/
size_type LowerBound() const
{
return m_array.LowerBound();
}
/*!
* Returns the maximum legal index in this array. It is equal to Length()-1.
* For empty arrays, this function returns a meaningless value.
*/
size_type UpperBound() const
{
return m_array.UpperBound();
}
/*!
* Returns a reference to the allocator object used by this reference array.
*/
const allocator& Allocator() const
{
return m_array.Allocator();
}
/*!
* Sets a new allocator object for this reference array.
*/
void SetAllocator( const allocator& a )
{
m_array.SetAllocator( a );
}
/*!
* Returns a mutable reference array iterator located at the specified array
* index \a i.
*/
iterator At( size_type i )
{
return iterator( m_array.At( i ) );
}
/*!
* Returns an immutable reference array iterator located at the specified
* array index \a i.
*/
const_iterator At( size_type i ) const
{
return const_iterator( m_array.At( i ) );
}
/*!
* Returns a mutable iterator pointing to the same array element as the
* specified immutable iterator \a i.
*
* \warning As a side-effect of calling this function, the specified
* immutable iterator \a i may become invalid. This happens when this
* function is called for a shared array, since in this case getting a
* mutable iterator involves a deep copy of the array through an implicit
* call to EnsureUnique().
*/
iterator MutableIterator( const_iterator i )
{
return iterator( m_array.MutableIterator( i.it ) );
}
/*!
* Returns a reference to the object at the specified array index
* \a i. No bounds checking is performed.
*/
T& operator []( size_type i )
{
return *m_array[i];
}
/*!
* Returns a reference to the immutable object at the specified array
* index \a i. No bounds checking is performed.
*/
const T& operator []( size_type i ) const
{
return *m_array[i];
}
/*!
* Returns a reference to the first object in this reference array.
*/
T& operator *()
{
return **m_array.Begin();
}
/*!
* Returns a reference to the unmodifiable first object in this reference
* array.
*/
const T& operator *() const
{
return **m_array.Begin();
}
/*!
* Returns a mutable iterator located at the beginning of this array.
*/
iterator Begin()
{
return iterator( m_array.Begin() );
}
/*!
* Returns an immutable iterator located at the beginning of this array.
*/
const_iterator Begin() const
{
return const_iterator( m_array.Begin() );
}
/*!
* Returns an immutable iterator located at the beginning of this array.
*/
const_iterator ConstBegin() const
{
return const_iterator( m_array.ConstBegin() );
}
/*!
* Returns a mutable iterator located at the end of this array.
*/
iterator End()
{
return iterator( m_array.End() );
}
/*!
* Returns an immutable iterator located at the end of this array.
*/
const_iterator End() const
{
return const_iterator( m_array.End() );
}
/*!
* Returns an immutable iterator located at the end of this array.
*/
const_iterator ConstEnd() const
{
return const_iterator( m_array.ConstEnd() );
}
/*!
* Returns a mutable reverse iterator located at the <em>reverse
* beginning</em> of this reference array.
*
* The reverse beginning corresponds to the last object in the array.
*/
reverse_iterator ReverseBegin()
{
return iterator( m_array.End()-1 );
}
/*!
* Returns an immutable reverse iterator located at the <em>reverse
* beginning</em> of this reference array.
*
* The reverse beginning corresponds to the last object in the array.
*/
const_reverse_iterator ReverseBegin() const
{
return const_iterator( m_array.End()-1 );
}
/*!
* Returns an immutable reverse iterator located at the <em>reverse
* beginning</em> of this indirect array.
*
* The reverse beginning corresponds to the last pointer in the array.
*/
const_reverse_iterator ConstReverseBegin() const
{
PCL_PRECONDITION( !IsEmpty() )
return const_iterator( m_array.End()-1 );
}
/*!
* Returns a mutable reverse iterator located at the <em>reverse end</em> of
* this reference array.
*
* The reverse end corresponds to a (nonexistent) object immediately before
* the first object in the array.
*/
reverse_iterator ReverseEnd()
{
PCL_PRECONDITION( !IsEmpty() )
return iterator( m_array.Begin()-1 );
}
/*!
* Returns an immutable reverse iterator located at the <em>reverse end</em>
* of this reference array.
*
* The reverse end corresponds to a (nonexistent) object immediately before
* the first object in the array.
*/
const_reverse_iterator ReverseEnd() const
{
PCL_PRECONDITION( !IsEmpty() )
return const_iterator( m_array.Begin()-1 );
}
/*!
* Returns an immutable reverse iterator located at the <em>reverse end</em>
* of this reference array.
*
* The reverse end corresponds to a (nonexistent) object immediately before
* the first object in the array.
*/
const_reverse_iterator ConstReverseEnd() const
{
PCL_PRECONDITION( !IsEmpty() )
return const_iterator( m_array.Begin()-1 );
}
/*!
* Returns a reference to the first object in this reference array. This
* function should never be called for an empty array.
*/
T& First()
{
return **m_array.Begin();
}
/*!
* Returns a reference to the first unmodifiable object in this reference
* array. This function should never be called for an empty array.
*/
const T& First() const
{
return **m_array.Begin();
}
/*!
* Returns a reference to the last object in this reference array. This
* function should never be called for an empty array.
*/
T& Last()
{
return **m_array.ReverseBegin();
}
/*!
* Returns a reference to the last unmodifiable object in this reference
* array. This function should never be called for an empty array.
*/
const T& Last() const
{
return **m_array.ReverseBegin();
}
/*!
* Ensures that the specified iterator represents a pointer stored in a
* uniquely referenced indirect array. If necessary, this function builds a
* new, uniquely referenced copy of the underlying indirect array by calling
* EnsureUnique().
*
* If the iterator \a i is changed, it is guaranteed to point to the object
* at the same array index it was pointing to before calling this function.
*/
void UniquifyIterator( iterator& i )
{
m_array.UniquifyIterator( i.it );
}
/*!
* Ensures that the specified iterators represents a pointer stored in a
* uniquely referenced indirect array. If necessary, this function builds a
* new, uniquely referenced copy of the underlying indirect array by calling
* EnsureUnique().
*
* If the iterators \a i and \a j are changed, they are guaranteed to point
* to the objects at the same array indices they were pointing to before
* calling this function.
*/
void UniquifyIterators( iterator& i, iterator& j )
{
m_array.UniquifyIterators( i.it, j.it );
}
#ifndef __PCL_NO_STL_COMPATIBLE_ITERATORS
/*!
* STL-compatible iteration. Equivalent to Begin().
*/
iterator begin()
{
return Begin();
}
/*!
* STL-compatible iteration. Equivalent to Begin() const.
*/
const_iterator begin() const
{
return Begin();
}
/*!
* STL-compatible iteration. Equivalent to End().
*/
iterator end()
{
return End();
}
/*!
* STL-compatible iteration. Equivalent to End() const.
*/
const_iterator end() const
{
return End();
}
#endif // !__PCL_NO_STL_COMPATIBLE_ITERATORS
/*!
* Copy assignment operator.
*
* Causes this reference array to reference the same set of objects as
* another array \a x. Returns a reference to this object.
*/
ReferenceArray& operator =( const ReferenceArray& x )
{
Assign( x );
return *this;
}
/*!
* Assigns a reference array \a x to this reference array.
*
* Decrements the reference counter of the current array data, and destroys
* it if it becomes unreferenced.
*
* Increments the reference counter of the source array's data and
* references it in this array.
*/
void Assign( const ReferenceArray& x )
{
m_array.Assign( x.m_array );
}
/*!
* Move assignment operator. Returns a reference to this object.
*/
ReferenceArray& operator =( ReferenceArray&& x )
{
Transfer( x );
return *this;
}
/*!
* Transfers data from another reference array \a x to this object.
*
* Decrements the reference counter of the current array data, and destroys
* it if it becomes unreferenced.
*
* Transfers source array data to this object, leaving empty and invalid the
* source object \a x.
*/
void Transfer( ReferenceArray& x )
{
m_array.Transfer( x.m_array );
}
/*!
* Transfers data from another reference array \a x to this object.
*
* Decrements the reference counter of the current array data, and destroys
* it if it becomes unreferenced.
*
* Transfers source array data to this object, leaving empty and invalid the
* source object \a x.
*/
void Transfer( ReferenceArray&& x )
{
m_array.Transfer( std::move( x.m_array ) );
}
/*!
* Replaces the contents of this reference array with a sequence of \a n
* pointers equal to \a p.
*
* if \a p is \c nullptr, this function yields an empty array.
*/
void Assign( const T* p, size_type n = 1 )
{
if ( p != nullptr )
m_array.Assign( p, n );
else
m_array.Clear();
}
/*!
* Replaces the contents of this reference array with a copy of the sequence
* of pointers defined by the range [i,j) of forward iterators.
*
* If the range [i,j) contains null pointers, these are ignored and hence
* not included in this reference array.
*
* \note \a i and \a j must not be iterators into this array.
*/
template <class FI>
void Assign( FI i, FI j )
{
m_array.Clear();
for ( ; i != j; ++i )
if ( *i != nullptr )
m_array.Append( *i );
}
/*!
* Replaces the contents of this reference array with a set of pointers to
* newly created copies of the objects stored in the specified container
* \a x. This function works for both direct and indirect containers.
*
* Keep in mind that after calling this function (with a reference to a
* nonempty container) this array will store newly allocated objects. You
* should call Destroy() to deallocate these objects before destructing this
* reference array in order to avoid a memory leak.
*/
template <class C>
void CloneAssign( const C& x )
{
PCL_ASSERT_CONTAINER( C, T );
CloneObjects( x, (C*)nullptr );
}
/*!
* Causes this reference array to store the sequence of pointers defined by
* the range [i,j) of iterators. The previously referenced data structure is
* dereferenced and deallocated if it becomes unreferenced.
*/
void Import( iterator i, iterator j )
{
m_array.Import( i.it, j.it );
}
/*!
* Releases the set of pointers contained by this reference array.
*
* This member function returns a pointer to the internal block of pointers
* stored in this object, after ensuring that it is uniquely referenced.
* If the array is empty, this function may return the null pointer.
*
* Before returning, this member function empties this array without
* deallocating its contained data. The caller is then responsible for
* deallocating the returned block when it is no longer required.
*/
indirect_iterator Release()
{
return m_array.Release();
}
/*!
* Inserts a copy of the sequence of pointers contained by the reference
* array \a x at the specified location \a i in this reference array.
*
* The insertion point \a i is constrained to stay in the range
* [Begin(),End()) of existing array elements. The source array \a x can
* safely be a reference to this array.
*
* Returns an iterator pointing to the first newly created array element, or
* \a i if \a x is empty.
*/
iterator Insert( const_iterator i, const ReferenceArray& x )
{
return iterator( m_array.Insert( i.it, x.m_array ) );
}
/*!
* Inserts a contiguous sequence of \a n non-null pointers equal to \a p at
* the specified location \a i.
*
* If \a p is \c nullptr, this function has no effect. The insertion point
* \a i is constrained to stay in the range [Begin(),End()) of existing
* array elements.
*
* Returns an iterator pointing to the first inserted array element, or \a i
* if \a n is zero or \a p is \c nullptr.
*/
iterator Insert( const_iterator i, const T* p, size_type n = 1 )
{
return (p != nullptr) ? iterator( m_array.Insert( i.it, p, n ) ) :
iterator( const_cast<indirect_iterator>( i.it ) );
}
/*!
* Inserts a copy of the sequence of pointers defined by the range [p,q)
* of forward iterators at the specified location \a i in this reference
* array.
*
* If the range [p,q) contains null pointers, these are ignored and not
* inserted in this array. The insertion point \a i is constrained to stay
* in the range [Begin(),End()) of existing array elements.
*
* Returns an iterator pointing to the first inserted array element, or \a i
* if \a q <= \a p or no element in [p,q) is a non-null pointer.
*
* \note \a p and \a q must not be iterators into this array.
*/
template <class FI>
iterator Insert( const_iterator i, FI p, FI q )
{
const_indirect_iterator it = i.it;
for ( ; p != q; ++p )
if ( *p != nullptr )
it = m_array.Insert( it, *p );
return iterator( const_cast<indirect_iterator>( it ) );
}
/*!
* Appends a copy of the sequence of pointers contained by the reference
* array \a x to this array.
*/
void Append( const ReferenceArray& x )
{
m_array.Append( x.m_array );
}
/*!
* Appends a contiguous sequence of \a n pointers equal to \a p to this
* reference array.
*
* If \a p is \c nullptr, this function has no effect.
*/
void Append( const T* p, size_type n = 1 )
{
if ( p != nullptr )
m_array.Append( p, n );
}
/*!
* Appends a copy of the sequence of pointers defined by the range [p,q)
* of forward iterators to this reference array.
*
* If the range [p,q) contains null pointers, these are ignored and not
* inserted in this array.
*
* \note \a p and \a q must not be iterators into this array.
*/
template <class FI>
void Append( FI p, FI q )
{
for ( ; p != q; ++p )
if ( *p != nullptr )
m_array.Append( *p );
}
/*!
* Inserts a copy of the sequence of pointers contained by the reference
* array \a x at the beginning of this reference array.
*/
void Prepend( const ReferenceArray& x )
{
m_array.Prepend( x.m_array );
}
/*!
* Inserts a contiguous sequence of \a n pointers equal to \a p at the
* beginning of this indirect array.
*
* If \a p is \c nullptr, this function has no effect.
*/
void Prepend( const T* p, size_type n = 1 )
{
if ( p != nullptr )
m_array.Prepend( p, n );
}
/*!
* Inserts a copy of the sequence of pointers defined by the range [p,q) of
* forward iterators at the beginning of this indirect array.
*
* If the range [p,q) contains null pointers, these are ignored and not
* inserted in this array.
*
* \note \a p and \a q must not be iterators into this array.
*/
template <class FI>
void Prepend( FI p, FI q )
{
for ( ; p != q; ++p )
if ( *p != nullptr )
m_array.Prepend( *p );
}
/*!
* A synonym for Append( const ReferenceArray<>& )
*/
void Add( const ReferenceArray& x )
{
Append( x );
}
/*!
* A synonym for Append( const T*, size_type )
*/
void Add( const T* p, size_type n = 1 )
{
Append( p, n );
}
/*!
* A synonym for Append( FI, FI )
*/
template <class FI>
void Add( FI i, FI j )
{
Append( i, j );
}
/*!
* Removes a sequence of \a n contiguous pointers starting at the specified
* location \a i in this reference array.
*
* Only pointers are removed by this function; the pointed objects are not
* affected in any way.
*/
void Remove( const_iterator i, size_type n = 1 )
{
m_array.Remove( i.it, n );
}
/*!
* Removes a sequence of contiguous pointers in the range [i,j) of this
* reference array.
*
* Only pointers are removed by this function; the pointed objects are not
* affected in any way.
*/
void Remove( const_iterator i, const_iterator j )
{
m_array.Remove( i.it, j.it );
}
/*!
* Removes a trailing sequence of contiguous pointers from the specified
* iterator of this reference array. This operation is equivalent to:
*
* \code Remove( i, End() ) \endcode
*
* If the specified iterator is located at or after the end of this array,
* this function does nothing. Otherwise the iterator is constrained to stay
* in the range [Begin(),End()) of existing array elements.
*
* Only pointers are removed by this function; the pointed objects are not
* affected in any way.
*/
void Truncate( const_iterator i )
{
m_array.Truncate( i.it );
}
/*!
* Removes a contiguous trailing sequence of \a n existing pointers from
* this reference array. This operation is equivalent to:
*
* \code Truncate( End() - n ) \endcode
*
* If the specified count \a n is greater than or equal to the length of
* this array, this function calls Clear() to yield an empty array.
*
* Only pointers are removed by this function; the pointed objects are not
* affected in any way.
*/
void Shrink( size_type n = 1 )
{
m_array.Shrink( n );
}
/*!
* Removes all existing pointers whose pointed objects are equal to the
* specified value \a v in this reference array.
*
* Only pointers are removed by this function; the pointed objects are not
* affected in any way.
*/
void Remove( const T& v )
{
m_array.Remove( v );
}
/*!
* Removes every pointer x in this reference array such that the binary
* predicate p( *x, \a v ) is true.
*
* Only pointers are removed by this function; the pointed objects are not
* affected in any way.
*/
template <class BP>
void Remove( const T& v, BP p )
{
m_array.Remove( v, p );
}
/*!
* Removes all contained pointers equal to \a p in this reference array.
*
* Only pointers are removed by this function; the pointed objects are not
* affected in any way.
*/
void RemovePointer( const T* p )
{
m_array.Remove( p );
}
/*!
* Removes all pointers contained by this object, yielding an empty
* reference array.
*
* If this array is empty, then calling this member function has no effect.
*
* If this array uniquely references its internal array data structure, all
* pointers contained are deallocated; otherwise its reference counter is
* decremented. Then a new, empty array data structure is created and
* uniquely referenced.
*
* Only pointers are removed by this function; the pointed objects are not
* affected in any way.
*/
void Clear()
{
m_array.Clear();
}
/*!
* Destroys and removes a sequence of \a n contiguous objects, starting at
* the specified location \a i in this reference array.
*
* This function destroys and deallocates the pointed objects, then removes
* the corresponding pointers in this array. The array length is decreased
* by the number of destroyed objects.
*
* \warning See Destroy( iterator, iterator ) for critical information on
* this member function.
*/
void Destroy( iterator i, size_type n = 1 )
{
m_array.Destroy( i.it, n );
}
/*!
* Destroys and removes the objects in a range [i,j) of iterators in this
* reference array.
*
* This function destroys and deallocates the pointed objects, then removes
* the corresponding pointers in this array. The array length is decreased
* by the number of destroyed objects.
*
* \warning This function is potentially dangerous. If the array contains
* duplicate pointers in the specified range of iterators, this function
* will lead to a crash as a result of multiple deletions. To minimize the
* risk of multiple deletions, this function ignores the normal data sharing
* mechanism so that all objects sharing the same array data structure will
* correctly have the destroyed objects removed. However, be aware of
* potential problems if other reference or indirect containers store
* pointers to deleted objects in different data structures, which will be
* invalid after calling this function.
*/
void Destroy( iterator i, iterator j )
{
m_array.Destroy( i.it, j.it );
}
/*!
* Destroys and removes all objects equal to \a v in this reference array.
*
* This function destroys and deallocates the pointed objects, then removes
* the corresponding pointers in this array. The array length is decreased
* by the number of destroyed objects.
*
* \warning See Destroy( iterator, iterator ) for critical information on
* this member function.
*/
void Destroy( const T& v )
{
m_array.Destroy( v );
}
/*!
* Destroys and removes every object x in this reference array such that the
* binary predicate p( x, \a v ) is true.
*
* This function destroys and deallocates the pointed objects, then removes
* the corresponding pointers in this array. The array length is decreased
* by the number of destroyed objects.
*
* \warning See Destroy( iterator, iterator ) for critical information on
* this member function.
*/
template <class BP>
void Destroy( const T& v, BP p )
{
m_array.Destroy( v, p );
}
/*!
* Destroys and removes all objects in this reference array, yielding an
* empty array.
*
* \warning See Destroy( iterator, iterator ) for critical information on
* this member function.
*/
void Destroy()
{
m_array.Destroy();
}
/*!
* Replaces a sequence of contiguous pointers defined by the range [i,j) of
* iterators in this array by the pointers stored in a reference array \a x.
*
* If the starting iterator \a i is located at or after the end of this
* array, or if \a j precedes \a i, this function does nothing. Otherwise
* the range [i,j) is constrained to stay in the range [Begin(),End()) of
* existing array elements.
*
* Returns an iterator pointing to the first replaced array element, \a i
* if no elements are replaced, or a null iterator if the resulting array is
* empty.
*/
iterator Replace( const_iterator i, const_iterator j, const ReferenceArray& x )
{
return iterator( m_array.Replace( i.it, j.it, x.m_array ) );
}
/*!
* Replaces a sequence of contiguous pointers defined by the range [i,j) in
* this reference array by \a n copies of the specified non-null pointer
* \a p.
*
* If \a p is \c nullptr, this function removes the subset [i,j) from this
* array, as if \a n = 0 had been specified.
*/
iterator Replace( const_iterator i, const_iterator j, const T* p, size_type n = 1 )
{
return iterator( m_array.Replace( i.it, j.it, p, (p != nullptr) ? n : size_type( 0 ) ) );
}
/*!
* Replaces a sequence of contiguous pointers defined by the range [i,j) in
* this reference array by the sequence of pointers in the range [p,q) of
* forward iterators.
*
* If the range [p,q) contains null pointers, these are ignored and not
* inserted in this array. If the starting iterator \a i is located at or
* after the end of this array, or if \a j precedes \a i, this function does
* nothing. Otherwise the range [i,j) is constrained to stay in the range
* [Begin(),End()) of existing array elements.
*
* Returns an iterator pointing to the first replaced array element, \a i
* if no elements are replaced, or a null iterator if the resulting array is
* empty.
*
* \note \a p and \a q must not be iterators into this array.
*/
template <class FI>
iterator Replace( const_iterator i, const_iterator j, FI p, FI q )
{
array_implementation m;
for ( ; p != q; ++p )
if ( *p != nullptr )
m.Append( *p );
return iterator( m_array.Replace( i.it, j.it, m ) );
}
/*!
* Ensures that this reference array has enough capacity to store \a n
* pointers.
*
* After calling this member function with \a n > 0, this object is
* guaranteed to uniquely reference its array data.
*/
void Reserve( size_type n )
{
m_array.Reserve( n );
}
/*!
* Causes this reference array to allocate the exact required memory space
* to store its contained pointers.
*
* If the array has excess capacity, a new copy of its contained pointers is
* generated and stored in a newly allocated memory block that fits them
* exactly, then the previous memory block is deallocated.
*
* If the array is empty, calling this function is equivalent to Clear().
* Note that in this case a previously allocated memory block (by a call to
* Reserve()) may also be deallocated.
*/
void Squeeze()
{
m_array.Squeeze();
}
/*!
* Sets all objects contained by this array equal to \a v.
*/
void Fill( const T& v )
{
pcl::Fill( Begin(), End(), v );
}
/*!
* Calls f( T& x ) for every object x in this reference array, successively
* from the first contained object to the last.
*/
template <class F>
void Apply( F f )
{
pcl::Apply( Begin(), End(), f );
}
/*!
* Calls f( const T& x ) for every unmodifiable object x in this reference
* array, successively from the first contained object to the last.
*/
template <class F>
void Apply( F f ) const
{
pcl::Apply( Begin(), End(), f );
}
/*!
* Returns an iterator pointing to the first object x in this reference
* array such that f( const T& x ) is true. Returns End() if such pointer
* does not exist.
*/
template <class F>
iterator FirstThat( F f ) const
{
return iterator( const_cast<indirect_iterator>( pcl::FirstThat( Begin(), End(), f ).it ) );
}
/*!
* Returns an iterator pointing to the last object x in this reference array
* such that f( const T& x ) is true. Returns End() if such pointer does not
* exist.
*/
template <class F>
iterator LastThat( F f ) const
{
return iterator( const_cast<indirect_iterator>( pcl::LastThat( Begin(), End(), f ).it ) );
}
/*!
* Returns the number of objects equal to \a v in this reference array.
*/
size_type Count( const T& v ) const
{
return pcl::Count( Begin(), End(), v );
}
/*!
* Returns the number of pointers equal to \a p stored in this reference
* array.
*
* If \a p is \c nullptr, this function \e should return zero --- or you are
* in serious trouble!
*/
size_type Count( const T* p ) const
{
return m_array.Count( p );
}
/*!
* Returns the number of objects in this reference array such that for each
* counted object x the binary predicate p( x, v ) returns true.
*/
template <class BP>
size_type Count( const T& v, BP p ) const
{
return pcl::Count( Begin(), End(), v, p );
}
/*!
* Returns the number of objects in this reference array such that for each
* counted object x the unary predicate p( x ) returns true.
*/
template <class UP>
size_type CountIf( UP p ) const
{
return pcl::CountIf( Begin(), End(), p );
}
/*! #
*/
iterator MinItem() const
{
return iterator( const_cast<indirect_iterator>( pcl::MinItem( Begin(), End() ).it ) );
}
/*! #
*/
template <class BP>
iterator MinItem( BP p ) const
{
return iterator( const_cast<indirect_iterator>( pcl::MinItem( Begin(), End(), p ).it ) );
}
/*! #
*/
iterator MaxItem() const
{
return iterator( const_cast<indirect_iterator>( pcl::MaxItem( Begin(), End() ).it ) );
}
/*! #
*/
template <class BP>
iterator MaxItem( BP p ) const
{
return iterator( const_cast<indirect_iterator>( pcl::MaxItem( Begin(), End(), p ).it ) );
}
/*! #
*/
void Reverse()
{
m_array.Reverse();
}
/*! #
*/
void Rotate( distance_type n )
{
m_array.Rotate( n );
}
/*! #
*/
void ShiftLeft( const T* p, size_type n = 1 )
{
m_array.ShiftLeft( p, n );
}
/*! #
*/
void ShiftRight( const T* p, size_type n = 1 )
{
m_array.ShiftRight( p, n );
}
/*! #
*/
iterator Search( const T& v ) const
{
return iterator( const_cast<indirect_iterator>( pcl::LinearSearch( Begin(), End(), v ).it ) );
}
/*! #
*/
iterator Search( const T* p ) const
{
return iterator( m_array.Search( p ) );
}
/*! #
*/
template <class BP>
iterator Search( const T& v, BP p ) const
{
return iterator( const_cast<indirect_iterator>( pcl::LinearSearch( Begin(), End(), v, p ).it ) );
}
/*! #
*/
iterator SearchLast( const T& v ) const
{
return iterator( const_cast<indirect_iterator>( pcl::LinearSearchLast( Begin(), End(), v ).it ) );
}
/*! #
*/
iterator SearchLast( const T* p ) const
{
return iterator( m_array.SearchLast( p ) );
}
/*! #
*/
template <class BP>
iterator SearchLast( const T& v, BP p ) const
{
return iterator( const_cast<indirect_iterator>( pcl::LinearSearchLast( Begin(), End(), v, p ).it ) );
}
/*! #
*/
template <class FI>
iterator SearchSubset( FI i, FI j ) const
{
return iterator( const_cast<indirect_iterator>( pcl::Search( Begin(), End(), i, j ).it ) );
}
/*! #
*/
template <class FI, class BP>
iterator SearchSubset( FI i, FI j, BP p ) const
{
return iterator( const_cast<indirect_iterator>( pcl::Search( Begin(), End(), i, j, p ).it ) );
}
/*! #
*/
template <class C>
iterator SearchSubset( const C& c ) const
{
return iterator( const_cast<indirect_iterator>( pcl::Search( Begin(), End(), c.Begin(), c.End() ).it ) );
}
/*! #
*/
template <class C, class BP>
iterator SearchSubset( const C& c, BP p ) const
{
return iterator( const_cast<indirect_iterator>( pcl::Search( Begin(), End(), c.Begin(), c.End(), p ).it ) );
}
/*! #
*/
template <class BI>
iterator SearchLastSubset( BI i, BI j ) const
{
return iterator( const_cast<indirect_iterator>( pcl::SearchLast( Begin(), End(), i, j ).it ) );
}
/*! #
*/
template <class BI, class BP>
iterator SearchLastSubset( BI i, BI j, BP p ) const
{
return iterator( const_cast<indirect_iterator>( pcl::SearchLast( Begin(), End(), i, j, p ).it ) );
}
/*! #
*/
template <class C>
iterator SearchLastSubset( const C& c ) const
{
return iterator( const_cast<indirect_iterator>( pcl::SearchLast( Begin(), End(), c.Begin(), c.End() ).it ) );
}
/*! #
*/
template <class C, class BP>
iterator SearchLastSubset( const C& c, BP p ) const
{
return iterator( const_cast<indirect_iterator>( pcl::SearchLast( Begin(), End(), c.Begin(), c.End(), p ).it ) );
}
/*! #
*/
bool Contains( const T& v ) const
{
return Search( v ) != End();
}
/*! #
*/
bool Contains( const T* p ) const
{
return m_array.Contains( p );
}
/*! #
*/
template <class BP>
bool Contains( const T& v, BP p ) const
{
return Search( v, p ) != End();
}
/*! #
*/
template <class FI>
iterator ContainsSubset( FI i, FI j ) const
{
return SearchSubset( i, j ) != End();
}
/*! #
*/
template <class FI, class BP>
iterator ContainsSubset( FI i, FI j, BP p ) const
{
return SearchSubset( i, j, p ) != End();
}
/*! #
*/
template <class C>
iterator ContainsSubset( const C& c ) const
{
return m_array.ContainsSubset( c );
}
/*! #
*/
template <class C, class BP>
iterator ContainsSubset( const C& c, BP p ) const
{
return SearchSubset( c ) != End();
}
/*! #
*/
void Sort()
{
pcl::QuickSort( m_array.Begin(), m_array.End(),
[]( const T* a, const T* b ){ return *a < *b; } );
}
/*! #
*/
template <class BP>
void Sort( BP p )
{
pcl::QuickSort( m_array.Begin(), m_array.End(),
[p]( const T* a, const T* b ){ return p( *a, *b ); } );
}
/*!
* Exchanges two reference arrays \a x1 and \a x2.
*/
friend void Swap( ReferenceArray& x1, ReferenceArray& x2 )
{
pcl::Swap( x1.m_array, x2.m_array );
}
/*!
* Generates a sequence of string tokens separated with the specified
* \a separator string. Returns a reference to the target string \a s.
*
* For each element in this array, this function appends a string
* representation (known as a \e token) to the target string \a s. If the
* array contains more than one element, successive tokens are separated
* with the specified \a separator.
*
* The string type S must have a meaningful %Append() member function and
* type conversion semantics to transform an array element to a string. The
* standard String and IsoString PCL classes provide the required
* functionality for most scalar types, although it is probably better to
* use String::ToSeparated() and IsoString::ToSeparated() instead of calling
* these functions directly.
*/
template <class S, typename SP>
S& ToSeparated( S& s, SP separator ) const
{
const_iterator i = Begin();
if ( i < End() )
{
s.Append( S( *i ) );
if ( ++i < End() )
do
{
s.Append( separator );
s.Append( S( *i ) );
}
while ( ++i < End() );
}
return s;
}
/*!
* Generates a sequence of string tokens separated with the specified
* \a separator string by calling an \a append function. Returns a reference
* to the target string \a s.
*
* For each element x in this array, this function appends a string
* representation (known as a \e token) to the target string \a s by
* calling the \a append function:
*
*\code append( s, S( x ) ); \endcode
*
* If the array contains more than one element, successive tokens are
* separated by calling:
*
* \code append( s, S( separator ) ); \endcode
*
* The string type S must have type conversion semantics to transform an
* array element to a string. The standard String and IsoString PCL classes
* provide the required functionality for most scalar types, although it is
* probably easier to use String::ToSeparated() and IsoString::ToSeparated()
* instead of calling these functions directly.
*/
template <class S, typename SP, class AF>
S& ToSeparated( S& s, SP separator, AF append ) const
{
const_iterator i = Begin();
if ( i < End() )
{
append( s, S( *i ) );
if ( ++i < End() )
{
S p( separator );
do
{
append( s, p );
append( s, S( *i ) );
}
while ( ++i < End() );
}
}
return s;
}
/*!
* Generates a comma-separated sequence of string tokens. Returns a
* reference to the target string \a s.
*
* This function is equivalent to:
*
* \code ToSeparated( s, ',' ); \endcode
*/
template <class S>
S& ToCommaSeparated( S& s ) const
{
return ToSeparated( s, ',' );
}
/*!
* Generates a space-separated sequence of string tokens. Returns a
* reference to the target string \a s.
*
* This function is equivalent to:
*
* \code ToSeparated( s, ' ' ); \endcode
*/
template <class S>
S& ToSpaceSeparated( S& s ) const
{
return ToSeparated( s, ' ' );
}
/*!
* Generates a tabulator-separated sequence of string tokens. Returns a
* reference to the target string \a s.
*
* This function is equivalent to:
*
* \code ToSeparated( s, '\t' ); \endcode
*/
template <class S>
S& ToTabSeparated( S& s ) const
{
return ToSeparated( s, '\t' );
}
/*!
* Generates a newline-separated sequence of string tokens. Returns a
* reference to the target string \a s.
*
* This function is equivalent to:
*
* \code ToSeparated( s, '\n' ); \endcode
*/
template <class S>
S& ToNewLineSeparated( S& s ) const
{
return ToSeparated( s, '\n' );
}
/*!
* Returns a 64-bit non-cryptographic hash value computed for this reference
* array.
*
* This function calls pcl::Hash64() for the internal array of pointers,
* \e not for the pointed objects.
*
* The \a seed parameter can be used to generate repeatable hash values. It
* can also be set to a random value in compromised environments.
*/
uint64 Hash64( uint64 seed = 0 ) const
{
return m_array.Hash64( seed );
}
/*!
* Returns a 32-bit non-cryptographic hash value computed for this reference
* array.
*
* This function calls pcl::Hash32() for the internal array of pointers,
* \e not for the pointed objects.
*
* The \a seed parameter can be used to generate repeatable hash values. It
* can also be set to a random value in compromised environments.
*/
uint32 Hash32( uint32 seed = 0 ) const
{
return m_array.Hash32( seed );
}
/*!
* Returns a non-cryptographic hash value computed for this reference array.
* This function is a synonym for Hash64().
*/
uint64 Hash( uint64 seed = 0 ) const
{
return Hash64( seed );
}
private:
array_implementation m_array;
template <class C>
void CloneObjects( const C& x, DirectContainer<T>* )
{
m_array.CloneAssign( x );
}
template <class C>
void CloneObjects( const C& x, IndirectContainer<T>* )
{
m_array.Clear();
m_array.Reserve( x.Length() );
allocator a;
for ( typename C::const_iterator p = x.Begin(); p != x.End(); ++p )
if ( *p != nullptr )
{
T* o = a.Allocate( 1 );
pcl::Construct( o, **p, a );
m_array.Append( o );
}
}
};
// ----------------------------------------------------------------------------
/*!
* Returns true iff two reference arrays \a x1 and \a x2 are equal. This
* operator compares the objects pointed to by the pointers stored in the
* reference arrays.
* \ingroup array_relational_operators
*/
template <class T, class A> inline
bool operator ==( const ReferenceArray<T,A>& x1, const ReferenceArray<T,A>& x2 )
{
return x1.Length() == x2.Length() && pcl::Equal( x1.Begin(), x2.Begin(), x2.End() );
}
/*!
* Returns true iff a reference array \a x1 precedes another reference array
* \a x2. This operator compares the objects pointed to by the pointers stored
* in the reference arrays.
* \ingroup array_relational_operators
*/
template <class T, class A> inline
bool operator <( const ReferenceArray<T,A>& x1, const ReferenceArray<T,A>& x2 )
{
return pcl::Compare( x1.Begin(), x1.End(), x2.Begin(), x2.End() ) < 0;
}
/*!
* Appends a non-null pointer \a p to a reference array \a x. Returns a
* reference to the left-hand reference array.
*
* A pointer to the template argument type V must be statically castable to T*.
* \ingroup array_insertion_operators
*/
template <class T, class A, class V> inline
ReferenceArray<T,A>& operator <<( ReferenceArray<T,A>& x, const V* p )
{
x.Append( static_cast<const T*>( p ) );
return x;
}
/*!
* Appends a non-null pointer \a p to a temporary reference array \a x. Returns
* a reference to the left-hand reference array.
*
* A pointer to the template argument type V must be statically castable to T*.
* \ingroup array_insertion_operators
*/
template <class T, class A, class V> inline
ReferenceArray<T,A>& operator <<( ReferenceArray<T,A>&& x, const V* p )
{
x.Append( static_cast<const T*>( p ) );
return x;
}
/*!
* Appends a reference array \a x2 to a reference array \a x1. Returns a
* reference to the left-hand reference array.
* \ingroup array_insertion_operators
*/
template <class T, class A> inline
ReferenceArray<T,A>& operator <<( ReferenceArray<T,A>& x1, const ReferenceArray<T,A>& x2 )
{
x1.Append( x2 );
return x1;
}
/*!
* Appends a reference array \a x2 to a temporary reference array \a x1.
* Returns a reference to the left-hand reference array.
* \ingroup array_insertion_operators
*/
template <class T, class A> inline
ReferenceArray<T,A>& operator <<( ReferenceArray<T,A>&& x1, const ReferenceArray<T,A>& x2 )
{
x1.Append( x2 );
return x1;
}
// ----------------------------------------------------------------------------
} // pcl
#endif // __PCL_ReferenceArray_h
// ----------------------------------------------------------------------------
// EOF pcl/ReferenceArray.h - Released 2022-03-12T18:59:29Z
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