mask_array Class Template Reference

Reference to selected subset of an array. More...

List of all members.

Public Types

Public Member Functions

Friends


Detailed Description

template<class _Tp>
class std::mask_array< _Tp >

A mask_array is a reference to the actual elements of an array specified by a bitmask in the form of an array of bool. The way to get a mask_array is to call operator[](valarray<bool>) on a valarray. The returned mask_array then permits carrying operations out on the referenced subset of elements in the original valarray.

For example, if a mask_array is obtained using the array (false, true, false, true) as an argument, the mask array has two elements referring to array[1] and array[3] in the underlying array.

Parameters:
Tp Element type.

Definition at line 61 of file mask_array.h.


Constructor & Destructor Documentation

mask_array ( const mask_array< _Tp > &  a  )  [inline]

Copy constructor. Both slices refer to the same underlying array.

Definition at line 138 of file mask_array.h.


Member Function Documentation

void operator%= ( const valarray< _Tp > &   )  const

Modulo slice elements by corresponding elements of v.

void operator&= ( const valarray< _Tp > &   )  const

Logical and slice elements with corresponding elements of v.

void operator*= ( const valarray< _Tp > &   )  const

Multiply slice elements by corresponding elements of v.

void operator+= ( const valarray< _Tp > &   )  const

Add corresponding elements of v to slice elements.

void operator-= ( const valarray< _Tp > &   )  const

Subtract corresponding elements of v from slice elements.

void operator/= ( const valarray< _Tp > &   )  const

Divide slice elements by corresponding elements of v.

void operator<<= ( const valarray< _Tp > &   )  const

Left shift slice elements by corresponding elements of v.

void operator= ( const _Tp &  __t  )  const [inline]

Assign all slice elements to t.

Definition at line 157 of file mask_array.h.

mask_array< _Tp > & operator= ( const mask_array< _Tp > &  __a  )  [inline]

Assignment operator. Assigns elements to corresponding elements of a.

Definition at line 148 of file mask_array.h.

References mask_array::_M_array, and mask_array::_M_mask.

void operator>>= ( const valarray< _Tp > &   )  const

Right shift slice elements by corresponding elements of v.

void operator^= ( const valarray< _Tp > &   )  const

Logical xor slice elements with corresponding elements of v.

void operator|= ( const valarray< _Tp > &   )  const

Logical or slice elements with corresponding elements of v.


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

Generated on Tue Dec 2 03:59:52 2008 for libstdc++ by  doxygen 1.5.7.1