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| MultiArray< N, T, A > Class Template Reference |

Main `MultiArray` class containing the memory management. More...

`#include <vigra/multi_array.hxx>`

Inheritance diagram for MultiArray< N, T, A >:

List of all members.

## Public Types

typedef A | allocator_type
typedef T * | const_iterator
typedef view_type::const_pointer | const_pointer
typedef view_type::const_reference | const_reference
typedef vigra::detail::MultiIteratorChooser < UnstridedArrayTag > ::template Traverser< N, T, T const &, T const * >::type | const_traverser
typedef view_type::difference_type | difference_type
typedef view_type::difference_type_1 | difference_type_1
typedef T * | iterator
typedef MultiArray< N, T, A > | matrix_type
typedef view_type::pointer | pointer
typedef view_type::reference | reference
typedef view_type::size_type | size_type
typedef vigra::detail::MultiIteratorChooser < UnstridedArrayTag > ::template Traverser< N, T, T &, T * >::type | traverser
typedef view_type::value_type | value_type
typedef MultiArrayView< N, T > | view_type

## Public Member Functions

allocator_type const & | allocator () const
iterator | begin ()
const_iterator | begin () const
iterator | end ()
const_iterator | end () const
template<class U >
MultiArray & | init (const U &init)
| MultiArray ()
| MultiArray (allocator_type const &alloc)
| MultiArray (difference_type_1 length, allocator_type const &alloc=allocator_type())
| MultiArray (const difference_type &shape, allocator_type const &alloc=allocator_type())
| MultiArray (const difference_type &shape, const_reference init, allocator_type const &alloc=allocator_type())
| MultiArray (const difference_type &shape, const_pointer init, allocator_type const &alloc=allocator_type())
| MultiArray (const MultiArray &rhs)
template<class Expression >
| MultiArray (multi_math::MultiMathOperand< Expression > const &rhs, allocator_type const &alloc=allocator_type())
template<class U , class StrideTag >
| MultiArray (const MultiArrayView< N, U, StrideTag > &rhs, allocator_type const &alloc=allocator_type())
template<class U , class StrideTag >
MultiArray & | operator*= (const MultiArrayView< N, U, StrideTag > &rhs)
MultiArray & | operator*= (const T &rhs)
template<class Expression >
MultiArray & | operator*= (multi_math::MultiMathOperand< Expression > const &rhs)
template<class U , class StrideTag >
MultiArray & | operator+= (const MultiArrayView< N, U, StrideTag > &rhs)
MultiArray & | operator+= (const T &rhs)
template<class Expression >
MultiArray & | operator+= (multi_math::MultiMathOperand< Expression > const &rhs)
template<class U , class StrideTag >
MultiArray & | operator-= (const MultiArrayView< N, U, StrideTag > &rhs)
MultiArray & | operator-= (const T &rhs)
template<class Expression >
MultiArray & | operator-= (multi_math::MultiMathOperand< Expression > const &rhs)
template<class U , class StrideTag >
MultiArray & | operator/= (const MultiArrayView< N, U, StrideTag > &rhs)
MultiArray & | operator/= (const T &rhs)
template<class Expression >
MultiArray & | operator/= (multi_math::MultiMathOperand< Expression > const &rhs)
MultiArray & | operator= (const MultiArray &rhs)
template<class U , class StrideTag >
MultiArray & | operator= (const MultiArrayView< N, U, StrideTag > &rhs)
MultiArray & | operator= (value_type const &v)
template<class Expression >
MultiArray & | operator= (multi_math::MultiMathOperand< Expression > const &rhs)
void | reshape (const difference_type &shape)
void | reshape (const difference_type &shape, const_reference init)
void | swap (MultiArray &other)
| ~MultiArray ()

## Protected Member Functions

void | allocate (pointer &ptr, difference_type_1 s, const_reference init)
template<class U >
void | allocate (pointer &ptr, difference_type_1 s, U const *init)
template<class U , class StrideTag >
void | allocate (pointer &ptr, MultiArrayView< N, U, StrideTag > const &init)
void | deallocate (pointer &ptr, difference_type_1 s)

## Protected Attributes

allocator_type | m_alloc

## Detailed Description

### template<unsigned int N, class T, class A>
class vigra::MultiArray< N, T, A >

Main `MultiArray` class containing the memory management.

This class inherits the interface of MultiArrayView, and implements the memory ownership. MultiArray's are always unstrided, striding them creates a MultiArrayView.

The template parameters are as follows

        N: the array dimension

        T: the type of the array elements

        A: the allocator used for internal storage management
           (default: std::allocator<T>)

#include <vigra/multi_array.hxx>

Namespace: vigra

Examples:
  total_variation.cxx.

## Member Typedef Documentation

typedef A allocator_type

the allocator type used to allocate the memory

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

typedef MultiArrayView<N, T> view_type

the view type associated with this array.

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

typedef MultiArray<N, T, A> matrix_type

the matrix type associated with this array.

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

typedef view_type::value_type value_type

the array's value type

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

typedef view_type::pointer pointer

pointer type

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

typedef view_type::const_pointer const_pointer

const pointer type

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

typedef view_type::reference reference

reference type (result of operator[])

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

typedef view_type::const_reference const_reference

const reference type (result of operator[] const)

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

typedef view_type::size_type size_type

size type

Reimplemented from MultiArrayView< N, T >.

typedef view_type::difference_type difference_type

difference type (used for multi-dimensional offsets and indices)

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

typedef view_type::difference_type_1 difference_type_1

difference and index type for a single dimension

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

typedef vigra::detail::MultiIteratorChooser< UnstridedArrayTag>::template Traverser<N, T, T &, T *>::type traverser

traverser type

Reimplemented from MultiArrayView< N, T >.

typedef vigra::detail::MultiIteratorChooser< UnstridedArrayTag>::template Traverser<N, T, T const &, T const *>::type const_traverser

traverser type to const data

Reimplemented from MultiArrayView< N, T >.

typedef T* iterator

sequential (random access) iterator type

Reimplemented from MultiArrayView< N, T >.

typedef T* const_iterator

sequential (random access) const iterator type

Reimplemented from MultiArrayView< N, T >.

## Constructor & Destructor Documentation

MultiArray | ( |  | ) |

default constructor

MultiArray | ( | allocator_type const & | alloc | ) |

construct with given allocator

MultiArray | ( | difference_type_1 | length,
|  | allocator_type const & | alloc = `allocator_type()`
| ) |  | `[explicit]`

construct with given length

Use only for 1-dimensional arrays (`N==1`).

MultiArray | ( | const difference_type & | shape,
|  | allocator_type const & | alloc = `allocator_type()`
| ) |  | `[explicit]`

construct with given shape

MultiArray | ( | const difference_type & | shape,
|  | const_reference | init,
|  | allocator_type const & | alloc = `allocator_type()`
| ) |  |

construct from shape with an initial value

MultiArray | ( | const difference_type & | shape,
|  | const_pointer | init,
|  | allocator_type const & | alloc = `allocator_type()`
| ) |  |

construct from shape and copy values from the given array

MultiArray | ( | const MultiArray< N, T, A > & | rhs | ) |

copy constructor

MultiArray | ( | multi_math::MultiMathOperand< Expression > const & | rhs,
|  | allocator_type const & | alloc = `allocator_type()`
| ) |  |

constructor from an array expression

MultiArray | ( | const MultiArrayView< N, U, StrideTag > & | rhs,
|  | allocator_type const & | alloc = `allocator_type()`
| ) |  |

construct by copying from a MultiArrayView

~MultiArray | ( |  | ) |

destructor

## Member Function Documentation

void allocate | ( | pointer & | ptr,
|  | difference_type_1 | s,
|  | const_reference | init
| ) |  | `[protected]`

allocate memory for s pixels, write its address into the given pointer and initialize the pixels with init.

void allocate | ( | pointer & | ptr,
|  | difference_type_1 | s,
|  | U const * | init
| ) |  | `[protected]`

allocate memory for s pixels, write its address into the given pointer and initialize the linearized pixels to the values of init.

void allocate | ( | pointer & | ptr,
|  | MultiArrayView< N, U, StrideTag > const & | init
| ) |  | `[protected]`

allocate memory, write its address into the given pointer and initialize it by copying the data from the given MultiArrayView.

void deallocate | ( | pointer & | ptr,
|  | difference_type_1 | s
| ) |  | `[protected]`

deallocate the memory (of length s) starting at the given address.

MultiArray& operator= | ( | const MultiArray< N, T, A > & | rhs | ) |

assignment.
If the size of rhs is the same as the left-hand side arrays's old size, only the data are copied. Otherwise, new storage is allocated, which invalidates all objects (array views, iterators) depending on the lhs array.

MultiArray& operator= | ( | const MultiArrayView< N, U, StrideTag > & | rhs | ) |

assignment from arbitrary MultiArrayView.
If the size of rhs is the same as the left-hand side arrays's old size, only the data are copied. Otherwise, new storage is allocated, which invalidates all objects (array views, iterators) depending on the lhs array.

MultiArray& operator= | ( | value_type const & | v | ) |

assignment from scalar.
Equivalent to MultiArray::init(v).

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T >.

MultiArray& operator+= | ( | const MultiArrayView< N, U, StrideTag > & | rhs | ) |

Add-assignment from arbitrary MultiArrayView. Fails with `PreconditionViolation` exception when the shapes do not match. If the left array has no data (hasData() is false), this function is equivalent to a normal assignment (i.e. an empty array is interpreted as a zero-array of appropriate size).

MultiArray& operator-= | ( | const MultiArrayView< N, U, StrideTag > & | rhs | ) |

Subtract-assignment from arbitrary MultiArrayView. Fails with `PreconditionViolation` exception when the shapes do not match. If the left array has no data (hasData() is false), this function is equivalent to an assignment of the negated rhs (i.e. an empty array is interpreted as a zero-array of appropriate size).

MultiArray& operator*= | ( | const MultiArrayView< N, U, StrideTag > & | rhs | ) |

Multiply-assignment from arbitrary MultiArrayView. Fails with `PreconditionViolation` exception when the shapes do not match. If the left array has no data (hasData() is false), this function is equivalent to reshape(rhs.shape()) with zero initialisation (i.e. an empty array is interpreted as a zero-array of appropriate size).

MultiArray& operator/= | ( | const MultiArrayView< N, U, StrideTag > & | rhs | ) |

Divide-assignment from arbitrary MultiArrayView. Fails with `PreconditionViolation` exception when the shapes do not match. If the left array has no data (hasData() is false), this function is equivalent to reshape(rhs.shape()) with zero initialisation (i.e. an empty array is interpreted as a zero-array of appropriate size).

MultiArray& operator+= | ( | const T & | rhs | ) |

Add-assignment of a scalar.

Reimplemented from MultiArrayView< N, T >.

MultiArray& operator-= | ( | const T & | rhs | ) |

Subtract-assignment of a scalar.

Reimplemented from MultiArrayView< N, T >.

MultiArray& operator*= | ( | const T & | rhs | ) |

Multiply-assignment of a scalar.

Reimplemented from MultiArrayView< N, T >.

MultiArray& operator/= | ( | const T & | rhs | ) |

Divide-assignment of a scalar.

Reimplemented from MultiArrayView< N, T >.

MultiArray& operator= | ( | multi_math::MultiMathOperand< Expression > const & | rhs | ) |

Assignment of an array expression. Fails with `PreconditionViolation` exception when the shapes do not match.

Reimplemented from MultiArrayView< N, T >.

MultiArray& operator+= | ( | multi_math::MultiMathOperand< Expression > const & | rhs | ) |

Add-assignment of an array expression. Fails with `PreconditionViolation` exception when the shapes do not match.

Reimplemented from MultiArrayView< N, T >.

MultiArray& operator-= | ( | multi_math::MultiMathOperand< Expression > const & | rhs | ) |

Subtract-assignment of an array expression. Fails with `PreconditionViolation` exception when the shapes do not match.

Reimplemented from MultiArrayView< N, T >.

MultiArray& operator*= | ( | multi_math::MultiMathOperand< Expression > const & | rhs | ) |

Multiply-assignment of an array expression. Fails with `PreconditionViolation` exception when the shapes do not match.

Reimplemented from MultiArrayView< N, T >.

MultiArray& operator/= | ( | multi_math::MultiMathOperand< Expression > const & | rhs | ) |

Divide-assignment of an array expression. Fails with `PreconditionViolation` exception when the shapes do not match.

Reimplemented from MultiArrayView< N, T >.

MultiArray& init | ( | const U & | init | ) |

init elements with a constant

Reimplemented from MultiArrayView< N, T >.

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

void reshape | ( | const difference_type & | shape | ) |

Allocate new memory with the given shape and initialize with zeros.
Note: this operation invalidates all dependent objects (array views and iterators)

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

void reshape | ( | const difference_type & | shape,
|  | const_reference | init
| ) |  |

Allocate new memory with the given shape and initialize it with the given value.
Note: this operation invalidates all dependent objects (array views and iterators)

Reimplemented in Matrix< T, ALLOC >, and Matrix< T >.

void swap | ( | MultiArray< N, T, A > & | other | ) |

Swap the contents with another MultiArray. This is fast, because no data are copied, but only pointers and shapes swapped. Note: this operation invalidates all dependent objects (array views and iterators)

iterator begin | ( |  | ) |

sequential iterator pointing to the first array element.

Reimplemented from MultiArrayView< N, T >.

iterator end | ( |  | ) |

sequential iterator pointing beyond the last array element.

Reimplemented from MultiArrayView< N, T >.

const_iterator begin | ( |  | ) | const

sequential const iterator pointing to the first array element.

Reimplemented from MultiArrayView< N, T >.

const_iterator end | ( |  | ) | const

sequential const iterator pointing beyond the last array element.

Reimplemented from MultiArrayView< N, T >.

allocator_type const& allocator | ( |  | ) | const

get the allocator.

## Member Data Documentation

allocator_type m_alloc `[protected]`

the allocator used to allocate the memory

The documentation for this class was generated from the following file:

- vigra/multi_array.hxx

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de) Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany | html generated using doxygen and Python vigra 1.9.0 (Tue Nov 6 2012)