std::mask_array

Langue: en

Autres versions - même langue

Version: 326415 (ubuntu - 08/07/09)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

std::mask_array - Reference to selected subset of an array.

SYNOPSIS


Public Types


typedef _Tp value_type

Public Member Functions


mask_array (const mask_array &)

template<class _Dom > void operator%= (const _Expr< _Dom, _Tp > &) const

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

template<class _Dom > void operator&= (const _Expr< _Dom, _Tp > &) const

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

template<class _Dom > void operator*= (const _Expr< _Dom, _Tp > &) const

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

template<class _Dom > void operator+= (const _Expr< _Dom, _Tp > &) const

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

template<class _Dom > void operator-= (const _Expr< _Dom, _Tp > &) const

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

template<class _Dom > void operator/= (const _Expr< _Dom, _Tp > &) const

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

template<class _Dom > void operator<<= (const _Expr< _Dom, _Tp > &) const

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

template<class _Ex > void operator= (const _Expr< _Ex, _Tp > &__e) const

template<class _Dom > void operator= (const _Expr< _Dom, _Tp > &) const

void operator= (const _Tp &) const

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

mask_array & operator= (const mask_array &)

template<class _Dom > void operator>>= (const _Expr< _Dom, _Tp > &) const

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

template<class _Dom > void operator^= (const _Expr< _Dom, _Tp > &) const

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

template<class _Dom > void operator|= (const _Expr< _Dom, _Tp > &) const

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

Friends


class valarray< _Tp >

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

template<typename _Tp > std::mask_array< _Tp >::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

template<typename _Tp > void std::mask_array< _Tp >::operator%= (const valarray< _Tp > & __v) const [inline]

Modulo slice elements by corresponding elements of v.

Definition at line 191 of file mask_array.h.

template<typename _Tp > void std::mask_array< _Tp >::operator&= (const valarray< _Tp > & __v) const [inline]

Logical and slice elements with corresponding elements of v.

Definition at line 195 of file mask_array.h.

template<typename _Tp > void std::mask_array< _Tp >::operator*= (const valarray< _Tp > & __v) const [inline]

Multiply slice elements by corresponding elements of v.

Definition at line 189 of file mask_array.h.

template<typename _Tp > void std::mask_array< _Tp >::operator+= (const valarray< _Tp > & __v) const [inline]

Add corresponding elements of v to slice elements.

Definition at line 192 of file mask_array.h.

template<typename _Tp > void std::mask_array< _Tp >::operator-= (const valarray< _Tp > & __v) const [inline]

Subtract corresponding elements of v from slice elements.

Definition at line 193 of file mask_array.h.

template<typename _Tp > void std::mask_array< _Tp >::operator/= (const valarray< _Tp > & __v) const [inline]

Divide slice elements by corresponding elements of v.

Definition at line 190 of file mask_array.h.

template<typename _Tp > void std::mask_array< _Tp >::operator<<= (const valarray< _Tp > & __v) const [inline]

Left shift slice elements by corresponding elements of v.

Definition at line 197 of file mask_array.h.

template<typename _Tp > void std::mask_array< _Tp >::operator= (const _Tp & __t) const [inline]

Assign all slice elements to t.

Definition at line 157 of file mask_array.h.

template<typename _Tp > mask_array< _Tp > & std::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 std::mask_array< _Tp >::_M_array, and std::mask_array< _Tp >::_M_mask.

template<typename _Tp > void std::mask_array< _Tp >::operator>>= (const valarray< _Tp > & __v) const [inline]

Right shift slice elements by corresponding elements of v.

Definition at line 198 of file mask_array.h.

template<typename _Tp > void std::mask_array< _Tp >::operator^= (const valarray< _Tp > & __v) const [inline]

Logical xor slice elements with corresponding elements of v.

Definition at line 194 of file mask_array.h.

template<typename _Tp > void std::mask_array< _Tp >::operator|= (const valarray< _Tp > & __v) const [inline]

Logical or slice elements with corresponding elements of v.

Definition at line 196 of file mask_array.h.

Author

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